{
    "contract": "GMI_DATALAB_PUBLIC_EXPORT_V1",
    "report_id": "RH-8340BFFBFBDA25DC",
    "region_id": "US-IA",
    "language": "en",
    "title": "Iowa Population, Economy, Jobs & Key Trends | Data Lab",
    "url": "https://greenblog.co.kr/en/data-report/iowa-population-economy-jobs-key-trends-data-lab/",
    "region": {
        "region_key": "us_ia",
        "region_id": "US-IA",
        "region_name": "Iowa",
        "geo_level": "state"
    },
    "region_profile": [
        {
            "label": "Geography level",
            "value": "State"
        },
        {
            "label": "Parent geography",
            "value": "United States"
        },
        {
            "label": "Capital",
            "value": "Des Moines"
        },
        {
            "label": "Capital",
            "value": "Des Moines"
        },
        {
            "label": "Major public research universities",
            "value": "Iowa State University; University of Iowa"
        },
        {
            "label": "Latest population",
            "value": "3.21M"
        },
        {
            "label": "Tracked indicators",
            "value": "6"
        },
        {
            "label": "Observation period",
            "value": "1838–2026"
        }
    ],
    "coverage": {
        "period_start": "1838",
        "period_end": "2026"
    },
    "template_id": "trend_dashboard",
    "metrics": [
        {
            "metric_key": "EIA_SEDS:TEPRB",
            "label": "Total primary energy production",
            "topic": "energy",
            "unit": "Billion Btu",
            "provider": "US_EIA",
            "source_url": "https://api.eia.gov/v2/seds/data/",
            "dataset_key": "TEPRB",
            "observations": [
                {
                    "period": "1985",
                    "value": 103984
                },
                {
                    "period": "1986",
                    "value": 142011
                },
                {
                    "period": "1987",
                    "value": 147630
                },
                {
                    "period": "1988",
                    "value": 158302
                },
                {
                    "period": "1989",
                    "value": 128630
                },
                {
                    "period": "1990",
                    "value": 121971
                },
                {
                    "period": "1991",
                    "value": 135837
                },
                {
                    "period": "1992",
                    "value": 134641
                },
                {
                    "period": "1993",
                    "value": 138529
                },
                {
                    "period": "1994",
                    "value": 150450
                },
                {
                    "period": "1995",
                    "value": 145390
                },
                {
                    "period": "1996",
                    "value": 154452
                },
                {
                    "period": "1997",
                    "value": 148246
                },
                {
                    "period": "1998",
                    "value": 141308
                },
                {
                    "period": "1999",
                    "value": 143558
                },
                {
                    "period": "2000",
                    "value": 146321
                },
                {
                    "period": "2001",
                    "value": 136622
                },
                {
                    "period": "2002",
                    "value": 149090
                },
                {
                    "period": "2003",
                    "value": 164786
                },
                {
                    "period": "2004",
                    "value": 212553
                },
                {
                    "period": "2005",
                    "value": 245341
                },
                {
                    "period": "2006",
                    "value": 303354
                },
                {
                    "period": "2007",
                    "value": 365898
                },
                {
                    "period": "2008",
                    "value": 436961
                },
                {
                    "period": "2009",
                    "value": 543494
                },
                {
                    "period": "2010",
                    "value": 600941
                },
                {
                    "period": "2011",
                    "value": 650111
                },
                {
                    "period": "2012",
                    "value": 632378
                },
                {
                    "period": "2013",
                    "value": 660735
                },
                {
                    "period": "2014",
                    "value": 665426
                },
                {
                    "period": "2015",
                    "value": 710147
                },
                {
                    "period": "2016",
                    "value": 728409
                },
                {
                    "period": "2017",
                    "value": 761002
                },
                {
                    "period": "2018",
                    "value": 789399
                },
                {
                    "period": "2019",
                    "value": 806716
                },
                {
                    "period": "2020",
                    "value": 739808
                },
                {
                    "period": "2021",
                    "value": 749384
                },
                {
                    "period": "2022",
                    "value": 776558
                },
                {
                    "period": "2023",
                    "value": 784651
                },
                {
                    "period": "2024",
                    "value": 825517
                }
            ],
            "summary": {
                "first_period": "1985",
                "first_value": 103984,
                "latest_period": "2024",
                "latest_value": 825517,
                "change": 721533,
                "change_pct": 693.8884828435143
            }
        },
        {
            "metric_key": "EIA_SEDS:TETCB",
            "label": "Total energy consumption",
            "topic": "energy",
            "unit": "Billion Btu",
            "provider": "US_EIA",
            "source_url": "https://api.eia.gov/v2/seds/data/",
            "dataset_key": "TETCB",
            "observations": [
                {
                    "period": "1985",
                    "value": 875272
                },
                {
                    "period": "1986",
                    "value": 878360
                },
                {
                    "period": "1987",
                    "value": 886824
                },
                {
                    "period": "1988",
                    "value": 960660
                },
                {
                    "period": "1989",
                    "value": 918981
                },
                {
                    "period": "1990",
                    "value": 941873
                },
                {
                    "period": "1991",
                    "value": 978008
                },
                {
                    "period": "1992",
                    "value": 968775
                },
                {
                    "period": "1993",
                    "value": 1033373
                },
                {
                    "period": "1994",
                    "value": 1062480
                },
                {
                    "period": "1995",
                    "value": 1100958
                },
                {
                    "period": "1996",
                    "value": 1142304
                },
                {
                    "period": "1997",
                    "value": 1129820
                },
                {
                    "period": "1998",
                    "value": 1141438
                },
                {
                    "period": "1999",
                    "value": 1188691
                },
                {
                    "period": "2000",
                    "value": 1186019
                },
                {
                    "period": "2001",
                    "value": 1157637
                },
                {
                    "period": "2002",
                    "value": 1183045
                },
                {
                    "period": "2003",
                    "value": 1179269
                },
                {
                    "period": "2004",
                    "value": 1232893
                },
                {
                    "period": "2005",
                    "value": 1259846
                },
                {
                    "period": "2006",
                    "value": 1281045
                },
                {
                    "period": "2007",
                    "value": 1354377
                },
                {
                    "period": "2008",
                    "value": 1412115
                },
                {
                    "period": "2009",
                    "value": 1398438
                },
                {
                    "period": "2010",
                    "value": 1442010
                },
                {
                    "period": "2011",
                    "value": 1441420
                },
                {
                    "period": "2012",
                    "value": 1358083
                },
                {
                    "period": "2013",
                    "value": 1430536
                },
                {
                    "period": "2014",
                    "value": 1444176
                },
                {
                    "period": "2015",
                    "value": 1404968
                },
                {
                    "period": "2016",
                    "value": 1413797
                },
                {
                    "period": "2017",
                    "value": 1450929
                },
                {
                    "period": "2018",
                    "value": 1521108
                },
                {
                    "period": "2019",
                    "value": 1503248
                },
                {
                    "period": "2020",
                    "value": 1349865
                },
                {
                    "period": "2021",
                    "value": 1385997
                },
                {
                    "period": "2022",
                    "value": 1428619
                },
                {
                    "period": "2023",
                    "value": 1403266
                },
                {
                    "period": "2024",
                    "value": 1398574
                }
            ],
            "summary": {
                "first_period": "1985",
                "first_value": 875272,
                "latest_period": "2024",
                "latest_value": 1398574,
                "change": 523302,
                "change_pct": 59.787357530002105
            }
        },
        {
            "metric_key": "ACS:B01003_001E",
            "label": "Population",
            "topic": "population",
            "unit": "persons",
            "provider": "US_CENSUS_DATA_API",
            "source_url": "https://api.census.gov/data/2024/acs/acs5",
            "dataset_key": "B01003_001E",
            "observations": [
                {
                    "period": "2011",
                    "value": 3032266
                },
                {
                    "period": "2012",
                    "value": 3047646
                },
                {
                    "period": "2013",
                    "value": 3062553
                },
                {
                    "period": "2014",
                    "value": 3078116
                },
                {
                    "period": "2015",
                    "value": 3093526
                },
                {
                    "period": "2016",
                    "value": 3106589
                },
                {
                    "period": "2017",
                    "value": 3118102
                },
                {
                    "period": "2018",
                    "value": 3132499
                },
                {
                    "period": "2019",
                    "value": 3139508
                },
                {
                    "period": "2020",
                    "value": 3150011
                },
                {
                    "period": "2021",
                    "value": 3179090
                },
                {
                    "period": "2022",
                    "value": 3188836
                },
                {
                    "period": "2023",
                    "value": 3195937
                },
                {
                    "period": "2024",
                    "value": 3210507
                }
            ],
            "summary": {
                "first_period": "2011",
                "first_value": 3032266,
                "latest_period": "2024",
                "latest_value": 3210507,
                "change": 178241,
                "change_pct": 5.8781452550666735
            }
        },
        {
            "metric_key": "ACS:B19013_001E",
            "label": "Median household income",
            "topic": "income",
            "unit": "US dollars",
            "provider": "US_CENSUS_DATA_API",
            "source_url": "https://api.census.gov/data/2024/acs/acs5",
            "dataset_key": "B19013_001E",
            "observations": [
                {
                    "period": "2011",
                    "value": 50451
                },
                {
                    "period": "2012",
                    "value": 51129
                },
                {
                    "period": "2013",
                    "value": 51843
                },
                {
                    "period": "2014",
                    "value": 52716
                },
                {
                    "period": "2015",
                    "value": 53183
                },
                {
                    "period": "2016",
                    "value": 54570
                },
                {
                    "period": "2017",
                    "value": 56570
                },
                {
                    "period": "2018",
                    "value": 58580
                },
                {
                    "period": "2019",
                    "value": 60523
                },
                {
                    "period": "2020",
                    "value": 61836
                },
                {
                    "period": "2021",
                    "value": 65429
                },
                {
                    "period": "2022",
                    "value": 70571
                },
                {
                    "period": "2023",
                    "value": 73147
                },
                {
                    "period": "2024",
                    "value": 75059
                }
            ],
            "summary": {
                "first_period": "2011",
                "first_value": 50451,
                "latest_period": "2024",
                "latest_value": 75059,
                "change": 24608,
                "change_pct": 48.776040118134425
            }
        },
        {
            "metric_key": "ACS:B25077_001E",
            "label": "Median home value",
            "topic": "housing",
            "unit": "US dollars",
            "provider": "US_CENSUS_DATA_API",
            "source_url": "https://api.census.gov/data/2024/acs/acs5",
            "dataset_key": "B25077_001E",
            "observations": [
                {
                    "period": "2011",
                    "value": 121300
                },
                {
                    "period": "2012",
                    "value": 123000
                },
                {
                    "period": "2013",
                    "value": 124300
                },
                {
                    "period": "2014",
                    "value": 126300
                },
                {
                    "period": "2015",
                    "value": 129200
                },
                {
                    "period": "2016",
                    "value": 132800
                },
                {
                    "period": "2017",
                    "value": 137200
                },
                {
                    "period": "2018",
                    "value": 142300
                },
                {
                    "period": "2019",
                    "value": 147800
                },
                {
                    "period": "2020",
                    "value": 153900
                },
                {
                    "period": "2021",
                    "value": 160700
                },
                {
                    "period": "2022",
                    "value": 181600
                },
                {
                    "period": "2023",
                    "value": 195900
                },
                {
                    "period": "2024",
                    "value": 208000
                }
            ],
            "summary": {
                "first_period": "2011",
                "first_value": 121300,
                "latest_period": "2024",
                "latest_value": 208000,
                "change": 86700,
                "change_pct": 71.47568013190437
            }
        },
        {
            "metric_key": "ACS:UNEMPLOYMENT_RATE",
            "label": "Unemployment rate",
            "topic": "employment",
            "unit": "percent",
            "provider": "US_CENSUS_DATA_API",
            "source_url": "https://api.census.gov/data/2024/acs/acs5",
            "dataset_key": "B23025_003E+B23025_005E",
            "observations": [
                {
                    "period": "2011",
                    "value": 5.5058793777701585
                },
                {
                    "period": "2012",
                    "value": 5.559467000443297
                },
                {
                    "period": "2013",
                    "value": 5.759483186008254
                },
                {
                    "period": "2014",
                    "value": 5.412777724640506
                },
                {
                    "period": "2015",
                    "value": 4.937939700769372
                },
                {
                    "period": "2016",
                    "value": 4.528751548151031
                },
                {
                    "period": "2017",
                    "value": 4.135944810922759
                },
                {
                    "period": "2018",
                    "value": 3.894196980110432
                },
                {
                    "period": "2019",
                    "value": 3.732414739259458
                },
                {
                    "period": "2020",
                    "value": 3.9193638203214523
                },
                {
                    "period": "2021",
                    "value": 3.9070466758680875
                },
                {
                    "period": "2022",
                    "value": 3.8232900683103948
                },
                {
                    "period": "2023",
                    "value": 3.631526410778616
                },
                {
                    "period": "2024",
                    "value": 3.5796008691795382
                }
            ],
            "summary": {
                "first_period": "2011",
                "first_value": 5.5058793777701585,
                "latest_period": "2024",
                "latest_value": 3.5796008691795382,
                "change": -1.9262785085906202,
                "change_pct": -34.985846518322184
            }
        }
    ],
    "timeline": [
        {
            "year": "1838",
            "period": "1838",
            "label": "1838",
            "branches": [
                {
                    "kind": "context_event",
                    "topic": "administration",
                    "source_name": "State Historical Society of Iowa",
                    "source_url": "https://history.iowa.gov/learn/k-12-education/professional-learning/iowa-history-course/unit-2-iowa-territory",
                    "event_type": "institutional_change",
                    "policy_domain": "territorial_governance",
                    "issuer": "United States Government",
                    "announcement_date": "1838-07-04",
                    "effective_date": "1838-07-04",
                    "official_document_title": "Act establishing the Territory of Iowa",
                    "policy_status": "effective",
                    "event_title_ko": "Iowa Territory 출범",
                    "event_text_ko": "연방정부가 Iowa Territory를 공식 설치하면서 Mississippi River 서쪽 지역에 별도의 준주 행정체계가 만들어졌다.",
                    "event_summary_ko": "연방정부가 Iowa Territory를 공식 설치하면서 Mississippi River 서쪽 지역에 별도의 준주 행정체계가 만들어졌다.",
                    "event_significance_ko": "현대 Iowa 주정부가 형성되기 전 행정·법률·정착정책의 기본 제도 틀을 만든 사건이다.",
                    "event_regional_context_ko": "준주 시기는 Burlington과 Iowa City를 중심으로 정부기관·토지조사·정착정책이 발전한 시기다.",
                    "event_background_ko": "Michigan·Wisconsin Territory를 거친 뒤 별도 Iowa Territory 설치가 이루어졌다.",
                    "event_outcome_ko": "이후 헌법 제정과 statehood 논의가 이어지며 주정부로 전환하는 제도과정이 진행됐다.",
                    "event_data_context_ko": "현대 에너지·인구·소득·주택·고용 지표보다 훨씬 이전의 제도적 배경으로 최근 통계 변화의 직접 원인으로 해석하지 않는다.",
                    "event_title_en": "Iowa Territory is established",
                    "event_text_en": "The federal government formally established Iowa Territory, creating a separate territorial administration west of the Mississippi River.",
                    "event_summary_en": "The federal government formally established Iowa Territory, creating a separate territorial administration west of the Mississippi River.",
                    "event_significance_en": "It created the basic administrative and legal framework that preceded modern Iowa state government.",
                    "event_regional_context_en": "The territorial period shaped early government, surveying and settlement patterns around places including Burlington and Iowa City.",
                    "event_background_en": "The region had previously been administered through Michigan and Wisconsin territories before becoming a separate Iowa Territory.",
                    "event_outcome_en": "Constitution-making and statehood debates followed, leading toward transition to state government.",
                    "event_data_context_en": "This is long-run institutional context far before modern energy, population, income, housing and labor data and is not treated as a direct cause of recent statistical change.",
                    "event_title_es": "Se establece Iowa Territory",
                    "event_text_es": "El gobierno federal estableció formalmente Iowa Territory y creó una administración territorial separada al oeste del Mississippi River.",
                    "event_summary_es": "El gobierno federal estableció formalmente Iowa Territory y creó una administración territorial separada al oeste del Mississippi River.",
                    "event_significance_es": "Creó el marco administrativo y jurídico básico anterior al gobierno estatal moderno de Iowa.",
                    "event_regional_context_es": "El periodo territorial configuró el gobierno temprano, la topografía y los patrones de asentamiento en lugares como Burlington e Iowa City.",
                    "event_background_es": "La región había sido administrada anteriormente mediante los territorios de Michigan y Wisconsin antes de convertirse en Iowa Territory.",
                    "event_outcome_es": "Posteriormente siguieron debates constitucionales y sobre statehood que condujeron hacia el gobierno estatal.",
                    "event_data_context_es": "Es contexto institucional de largo plazo muy anterior a los datos modernos de energía, población, ingresos, vivienda y empleo y no se trata como causa directa de cambios estadísticos recientes.",
                    "event_related_places": [
                        "Iowa Territory"
                    ],
                    "event_title": "Iowa Territory is established",
                    "event_text": "The federal government formally established Iowa Territory, creating a separate territorial administration west of the Mississippi River."
                }
            ]
        },
        {
            "year": "1846",
            "period": "1846",
            "label": "1846",
            "branches": [
                {
                    "kind": "context_event",
                    "topic": "administration",
                    "source_name": "Iowa Legislature",
                    "source_url": "https://www.legis.iowa.gov/law/statutory/constitution/constConventions?year=1846",
                    "event_type": "institutional_change",
                    "policy_domain": "statehood",
                    "issuer": "United States Government / Iowa electorate",
                    "announcement_date": "1846-12-28",
                    "effective_date": "1846-12-28",
                    "official_document_title": "Admission of Iowa to the Union",
                    "policy_status": "enacted",
                    "event_title_ko": "Iowa 주 승격",
                    "event_text_ko": "Iowa가 미국의 주로 편입되면서 준주정부에서 정식 주정부 체계로 전환됐다.",
                    "event_summary_ko": "Iowa가 미국의 주로 편입되면서 준주정부에서 정식 주정부 체계로 전환됐다.",
                    "event_significance_ko": "현대 Iowa의 입법·행정·사법 체계가 발전하는 핵심 국가제도 이정표다.",
                    "event_regional_context_ko": "초기 수도와 헌정구조가 정비되고 이후 Des Moines로 행정 중심지가 이동하는 주정부 발전의 출발점이 됐다.",
                    "event_background_ko": "여러 차례의 헌법 논의와 유권자 승인 과정을 거쳐 statehood가 이루어졌다.",
                    "event_outcome_ko": "이후 Iowa는 연방제 아래 자체 주정부 기관을 운영하게 됐다.",
                    "event_data_context_ko": "현대 통계 흐름의 직접 원인으로 연결하지 않고 장기 행정사 배경으로 사용한다.",
                    "event_title_en": "Iowa becomes a state",
                    "event_text_en": "Iowa entered the Union as a state, replacing territorial administration with a formal state-government system.",
                    "event_summary_en": "Iowa entered the Union as a state, replacing territorial administration with a formal state-government system.",
                    "event_significance_en": "Statehood is a central institutional milestone in the development of modern Iowa government.",
                    "event_regional_context_en": "It began the state-government period in which Iowa's constitutional framework and capital arrangements continued to evolve.",
                    "event_background_en": "Statehood followed several rounds of constitutional debate and voter consideration.",
                    "event_outcome_en": "Iowa thereafter operated its own state institutions within the federal system.",
                    "event_data_context_en": "It is used as long-run administrative history rather than as a direct explanation for modern statistical trends.",
                    "event_title_es": "Iowa se convierte en estado",
                    "event_text_es": "Iowa ingresó en la Unión como estado y sustituyó la administración territorial por un sistema formal de gobierno estatal.",
                    "event_summary_es": "Iowa ingresó en la Unión como estado y sustituyó la administración territorial por un sistema formal de gobierno estatal.",
                    "event_significance_es": "La condición de estado es un hito institucional central en el desarrollo del gobierno moderno de Iowa.",
                    "event_regional_context_es": "Inició el periodo de gobierno estatal en el que continuaron evolucionando el marco constitucional y la organización de la capital.",
                    "event_background_es": "La condición de estado llegó después de varias rondas de debate constitucional y consideración por los votantes.",
                    "event_outcome_es": "Iowa pasó a operar sus propias instituciones estatales dentro del sistema federal.",
                    "event_data_context_es": "Se utiliza como historia administrativa de largo plazo y no como explicación directa de tendencias estadísticas modernas.",
                    "event_related_places": [
                        "Iowa"
                    ],
                    "event_title": "Iowa becomes a state",
                    "event_text": "Iowa entered the Union as a state, replacing territorial administration with a formal state-government system."
                }
            ]
        },
        {
            "year": "1857",
            "period": "1857",
            "label": "1857",
            "branches": [
                {
                    "kind": "context_event",
                    "topic": "administration",
                    "source_name": "Iowa Legislature",
                    "source_url": "https://www.legis.iowa.gov/law/statutory/constitution",
                    "event_type": "constitutional_revision",
                    "policy_domain": "state_constitution",
                    "issuer": "Iowa Constitutional Convention / Iowa electorate",
                    "announcement_date": "1857",
                    "effective_date": "1857",
                    "official_document_title": "Constitution of the State of Iowa",
                    "policy_status": "ratified",
                    "event_title_ko": "현행 Iowa Constitution 채택",
                    "event_text_ko": "Iowa가 새로운 주 헌법을 채택하면서 현재까지 이어지는 주정부의 기본 헌정틀이 마련됐다.",
                    "event_summary_ko": "Iowa가 새로운 주 헌법을 채택하면서 현재까지 이어지는 주정부의 기본 헌정틀이 마련됐다.",
                    "event_significance_ko": "현대 Iowa의 권리·정부기관·입법체계를 이해하는 핵심 법적 기준점이다.",
                    "event_regional_context_ko": "주도 이전과 함께 Iowa의 초기 statehood 체계를 보다 지속적인 헌정구조로 재정비한 시기와 연결된다.",
                    "event_background_ko": "이전 헌법 운영 경험과 새로운 정치·경제 환경을 반영하기 위한 convention이 열렸다.",
                    "event_outcome_ko": "이 헌법은 이후 amendments를 포함해 Iowa 주정부의 기본 법체계로 유지되고 있다.",
                    "event_data_context_ko": "현대 지표 변화의 직접 원인으로 보지 않고 제도적 배경으로 사용한다.",
                    "event_title_en": "Iowa adopts its current state constitution",
                    "event_text_en": "Iowa adopted a new state constitution that remains the original constitutional framework of state government.",
                    "event_summary_en": "Iowa adopted a new state constitution that remains the original constitutional framework of state government.",
                    "event_significance_en": "It is the central legal reference point for understanding modern Iowa rights and state-government structure.",
                    "event_regional_context_en": "The constitution belongs to a period when Iowa was consolidating its early statehood institutions and capital arrangements.",
                    "event_background_en": "A constitutional convention met to revise the earlier state framework in light of experience and changing conditions.",
                    "event_outcome_en": "The constitution, with later amendments, remains the basic legal framework of Iowa state government.",
                    "event_data_context_en": "It is used as institutional context rather than as a direct cause of modern metric changes.",
                    "event_title_es": "Iowa adopta su constitución estatal actual",
                    "event_text_es": "Iowa adoptó una nueva constitución estatal que sigue siendo el marco constitucional original del gobierno estatal.",
                    "event_summary_es": "Iowa adoptó una nueva constitución estatal que sigue siendo el marco constitucional original del gobierno estatal.",
                    "event_significance_es": "Es el principal punto de referencia jurídico para comprender los derechos y la estructura del gobierno moderno de Iowa.",
                    "event_regional_context_es": "La constitución pertenece a un periodo en el que Iowa consolidaba sus instituciones estatales y la organización de su capital.",
                    "event_background_es": "Una convención constitucional se reunió para revisar el marco estatal anterior a la luz de la experiencia y nuevas condiciones.",
                    "event_outcome_es": "La constitución, con enmiendas posteriores, sigue siendo el marco jurídico básico del gobierno estatal de Iowa.",
                    "event_data_context_es": "Se utiliza como contexto institucional y no como causa directa de cambios en indicadores modernos.",
                    "event_related_places": [
                        "Iowa"
                    ],
                    "event_title": "Iowa adopts its current state constitution",
                    "event_text": "Iowa adopted a new state constitution that remains the original constitutional framework of state government."
                }
            ]
        },
        {
            "year": "1858",
            "period": "1858",
            "label": "1858",
            "branches": [
                {
                    "kind": "context_event",
                    "topic": "education",
                    "source_name": "Iowa State University",
                    "source_url": "https://historicexhibits.lib.iastate.edu/150/template/history.html",
                    "event_type": "institutional_change",
                    "policy_domain": "higher_education_agriculture",
                    "issuer": "State of Iowa",
                    "announcement_date": "1858-03-22",
                    "effective_date": "1858-03-22",
                    "official_document_title": "Act establishing Iowa Agricultural College and Model Farm",
                    "policy_status": "enacted",
                    "event_title_ko": "Iowa Agricultural College 설립",
                    "event_text_ko": "Iowa가 Agricultural College and Model Farm 설립을 법제화해 오늘날 Iowa State University로 이어지는 공립 농업·공학·과학 교육 기반을 만들었다.",
                    "event_summary_ko": "Iowa가 Agricultural College and Model Farm 설립을 법제화해 오늘날 Iowa State University로 이어지는 공립 농업·공학·과학 교육 기반을 만들었다.",
                    "event_significance_ko": "농업 중심 지역에서 연구·교육·extension을 결합하는 land-grant형 지식 인프라의 핵심 출발점이다.",
                    "event_regional_context_ko": "Ames가 교육·연구 중심지로 성장하는 장기 배경이 되었고 주 전역의 농업·공학 연구와 extension 체계로 이어졌다.",
                    "event_background_ko": "농업 연구와 실용교육을 위한 주립기관 필요성이 입법 설립의 배경이 됐다.",
                    "event_outcome_ko": "이 기관은 이후 land-grant university로 발전하며 Iowa의 대표 연구대학이 됐다.",
                    "event_data_context_ko": "현대 에너지·소득·고용 지표의 직접 인과설명으로 사용하지 않고 교육·농업·연구 생태계의 장기 맥락으로 제시한다.",
                    "event_title_en": "Iowa Agricultural College is established",
                    "event_text_en": "Iowa established the Agricultural College and Model Farm, creating the institution that became Iowa State University and a major base for agricultural, engineering and scientific education.",
                    "event_summary_en": "Iowa established the Agricultural College and Model Farm, creating the institution that became Iowa State University and a major base for agricultural, engineering and scientific education.",
                    "event_significance_en": "It is a foundational milestone in Iowa's long-running connection between agriculture, research, practical education and extension.",
                    "event_regional_context_en": "The institution helped establish Ames as an education and research center and later supported statewide agricultural and engineering research and extension.",
                    "event_background_en": "State interest in agricultural research and practical higher education drove establishment of the college.",
                    "event_outcome_en": "The institution later developed as a land-grant university and became one of Iowa's major research universities.",
                    "event_data_context_en": "It is presented as long-run education, agriculture and research context rather than as a direct causal explanation for modern energy, income or labor trends.",
                    "event_title_es": "Se establece Iowa Agricultural College",
                    "event_text_es": "Iowa estableció Agricultural College and Model Farm, creando la institución que se convirtió en Iowa State University y una importante base de educación agrícola, de ingeniería y científica.",
                    "event_summary_es": "Iowa estableció Agricultural College and Model Farm, creando la institución que se convirtió en Iowa State University y una importante base de educación agrícola, de ingeniería y científica.",
                    "event_significance_es": "Es un hito fundacional de la conexión de largo plazo de Iowa entre agricultura, investigación, educación práctica y extensión.",
                    "event_regional_context_es": "La institución ayudó a consolidar Ames como centro de educación e investigación y posteriormente apoyó investigación agrícola, de ingeniería y extensión en todo el estado.",
                    "event_background_es": "El interés estatal por investigación agrícola y educación superior práctica impulsó la creación del college.",
                    "event_outcome_es": "La institución evolucionó posteriormente como universidad land-grant y se convirtió en una de las principales universidades de investigación de Iowa.",
                    "event_data_context_es": "Se presenta como contexto de largo plazo de educación, agricultura e investigación y no como explicación causal directa de tendencias modernas de energía, ingresos o empleo.",
                    "event_related_places": [
                        "Ames",
                        "Iowa State University"
                    ],
                    "event_title": "Iowa Agricultural College is established",
                    "event_text": "Iowa established the Agricultural College and Model Farm, creating the institution that became Iowa State University and a major base for agricultural, engineering and scientific education."
                }
            ]
        },
        {
            "year": "1920",
            "period": "1920",
            "label": "1920",
            "branches": [
                {
                    "kind": "context_event",
                    "topic": "conservation",
                    "source_name": "Iowa Department of Natural Resources",
                    "source_url": "https://www.iowadnr.gov/places-go/state-parks/all-parks/backbone-state-park",
                    "event_type": "infrastructure_milestone",
                    "policy_domain": "state_park_system",
                    "issuer": "State of Iowa",
                    "announcement_date": "1920",
                    "effective_date": "1920",
                    "official_document_title": "Dedication of Backbone State Park",
                    "policy_status": "completed",
                    "event_title_ko": "Backbone State Park 개장",
                    "event_text_ko": "Backbone State Park가 Iowa 최초의 주립공원으로 지정·개방되며 주 차원의 자연보전·야외휴양 체계가 상징적으로 출발했다.",
                    "event_summary_ko": "Backbone State Park가 Iowa 최초의 주립공원으로 지정·개방되며 주 차원의 자연보전·야외휴양 체계가 상징적으로 출발했다.",
                    "event_significance_ko": "농업경관으로 잘 알려진 Iowa에서 암반 능선·하천·산림 같은 자연경관을 공공자산으로 보전한 대표적인 보전 이정표다.",
                    "event_regional_context_ko": "이후 Iowa state park network가 확대되는 초기 기준점이 됐다.",
                    "event_background_ko": "자연경관 보호와 시민 야외휴양 공간 마련에 대한 관심이 주립공원 설립으로 이어졌다.",
                    "event_outcome_ko": "Backbone은 이후 Iowa의 대표 hiking·camping·nature recreation 장소로 유지되고 있다.",
                    "event_data_context_ko": "현대 통계의 직접 원인으로 보지 않고 자연보전·관광·공공토지 역사의 장기 맥락으로 사용한다.",
                    "event_title_en": "Backbone becomes Iowa's first state park",
                    "event_text_en": "Backbone State Park was dedicated as Iowa's first state park, marking an early milestone in statewide conservation and outdoor recreation.",
                    "event_summary_en": "Backbone State Park was dedicated as Iowa's first state park, marking an early milestone in statewide conservation and outdoor recreation.",
                    "event_significance_en": "It is a defining conservation milestone showing the protection of river, forest and bedrock landscapes within a state widely associated with agriculture.",
                    "event_regional_context_en": "The park became an early reference point for the later expansion of Iowa's state-park network.",
                    "event_background_en": "Growing interest in landscape protection and public outdoor recreation supported creation of the park.",
                    "event_outcome_en": "Backbone has remained a major Iowa destination for hiking, camping and nature-based recreation.",
                    "event_data_context_en": "It is used as long-run conservation, recreation and public-land context rather than as a direct cause of modern statistics.",
                    "event_title_es": "Backbone se convierte en el primer parque estatal de Iowa",
                    "event_text_es": "Backbone State Park fue dedicado como el primer parque estatal de Iowa y marcó un hito temprano de conservación y recreación pública estatal.",
                    "event_summary_es": "Backbone State Park fue dedicado como el primer parque estatal de Iowa y marcó un hito temprano de conservación y recreación pública estatal.",
                    "event_significance_es": "Es un hito de conservación que muestra la protección de paisajes de río, bosque y roca en un estado ampliamente asociado con agricultura.",
                    "event_regional_context_es": "El parque se convirtió en una referencia temprana para la posterior expansión de la red de parques estatales de Iowa.",
                    "event_background_es": "El creciente interés por proteger paisajes y ofrecer recreación pública impulsó la creación del parque.",
                    "event_outcome_es": "Backbone ha seguido siendo un importante destino de Iowa para senderismo, camping y recreación de naturaleza.",
                    "event_data_context_es": "Se utiliza como contexto de largo plazo de conservación, recreación y tierras públicas y no como causa directa de estadísticas modernas.",
                    "event_related_places": [
                        "Backbone State Park"
                    ],
                    "event_title": "Backbone becomes Iowa's first state park",
                    "event_text": "Backbone State Park was dedicated as Iowa's first state park, marking an early milestone in statewide conservation and outdoor recreation."
                }
            ]
        },
        {
            "year": "1983",
            "period": "1983",
            "label": "1983",
            "branches": [
                {
                    "kind": "context_event",
                    "topic": "energy_policy",
                    "source_name": "State of Iowa",
                    "source_url": "https://publications.iowa.gov/31438/1/IEP_Appendices_full.pdf",
                    "event_type": "legislation",
                    "policy_domain": "renewable_energy",
                    "issuer": "State of Iowa",
                    "announcement_date": "1983",
                    "effective_date": "1983",
                    "official_document_title": "Alternative Energy Production Law",
                    "policy_status": "enacted",
                    "event_title_ko": "Alternative Energy Production Law 시행",
                    "event_text_ko": "Iowa가 regulated utilities에 renewable generation 확보 의무를 두는 Alternative Energy Production Law를 마련해 주 에너지정책에 재생에너지 조달 기준을 도입했다.",
                    "event_summary_ko": "Iowa가 regulated utilities에 renewable generation 확보 의무를 두는 Alternative Energy Production Law를 마련해 주 에너지정책에 재생에너지 조달 기준을 도입했다.",
                    "event_significance_ko": "이후 Iowa의 재생에너지·전력정책을 이해하는 대표적인 초기 법제 이정표다.",
                    "event_regional_context_ko": "농업·바이오에너지 자원과 풍력발전이 중요한 Iowa에서 장기적인 전력정책 변화의 제도적 배경이 됐다.",
                    "event_background_ko": "대체·재생에너지를 utility resource planning에 포함하려는 주 정책이 법적 의무로 구체화됐다.",
                    "event_outcome_ko": "이후 renewable generation과 interconnection 관련 규정·정책이 발전하는 기반 중 하나가 됐다.",
                    "event_data_context_ko": "EIA 생산계열의 장기 상승과 같은 시기에 존재하는 정책 맥락이지만 개별 통계 변화가 이 법 하나 때문에 발생했다고 단정하지 않는다.",
                    "event_title_en": "Iowa adopts the Alternative Energy Production Law",
                    "event_text_en": "Iowa adopted the Alternative Energy Production Law, creating a renewable-generation requirement for regulated utilities and adding a durable renewable-energy policy framework.",
                    "event_summary_en": "Iowa adopted the Alternative Energy Production Law, creating a renewable-generation requirement for regulated utilities and adding a durable renewable-energy policy framework.",
                    "event_significance_en": "It is a defining early policy milestone for understanding Iowa's later renewable-energy and electricity framework.",
                    "event_regional_context_en": "In a state where agricultural energy resources and wind later became important, the law provides institutional context for long-run change in the power sector.",
                    "event_background_en": "State efforts to incorporate alternative and renewable resources into utility planning were formalized through the law.",
                    "event_outcome_en": "The law became one foundation for later renewable-generation and interconnection policy.",
                    "event_data_context_en": "The law provides policy context for the period in which the EIA production series later expands, but individual statistical changes are not attributed to this law alone.",
                    "event_title_es": "Iowa adopta la Alternative Energy Production Law",
                    "event_text_es": "Iowa adoptó la Alternative Energy Production Law, creó un requisito de generación renovable para utilities reguladas y añadió un marco duradero de política de energía renovable.",
                    "event_summary_es": "Iowa adoptó la Alternative Energy Production Law, creó un requisito de generación renovable para utilities reguladas y añadió un marco duradero de política de energía renovable.",
                    "event_significance_es": "Es un hito temprano de política para comprender el posterior marco de energía renovable y electricidad de Iowa.",
                    "event_regional_context_es": "En un estado donde posteriormente cobraron importancia recursos energéticos agrícolas y viento, la ley aporta contexto institucional al cambio de largo plazo del sector eléctrico.",
                    "event_background_es": "Los esfuerzos estatales para incorporar recursos alternativos y renovables en la planificación de utilities se formalizaron mediante la ley.",
                    "event_outcome_es": "La ley se convirtió en una base para políticas posteriores de generación renovable e interconexión.",
                    "event_data_context_es": "La ley aporta contexto de política al periodo en que posteriormente se expande la serie de producción EIA, pero no se atribuyen los cambios estadísticos a esta ley por sí sola.",
                    "event_related_places": [
                        "Iowa"
                    ],
                    "event_title": "Iowa adopts the Alternative Energy Production Law",
                    "event_text": "Iowa adopted the Alternative Energy Production Law, creating a renewable-generation requirement for regulated utilities and adding a durable renewable-energy policy framework."
                }
            ]
        },
        {
            "period": "1986",
            "year": "1986",
            "month": "",
            "label": "1986",
            "branches": [
                {
                    "kind": "statistic_change",
                    "topic": "energy",
                    "metric_key": "EIA_SEDS:TEPRB",
                    "metric_label": "Total primary energy production",
                    "value": 142011,
                    "previous_value": 103984,
                    "delta": 38027,
                    "unit": "Billion Btu",
                    "source_url": "https://api.eia.gov/v2/seds/data/",
                    "provider": "US_EIA"
                },
                {
                    "kind": "statistic_change",
                    "topic": "energy",
                    "metric_key": "EIA_SEDS:TETCB",
                    "metric_label": "Total energy consumption",
                    "value": 878360,
                    "previous_value": 875272,
                    "delta": 3088,
                    "unit": "Billion Btu",
                    "source_url": "https://api.eia.gov/v2/seds/data/",
                    "provider": "US_EIA"
                }
            ]
        },
        {
            "period": "1987",
            "year": "1987",
            "month": "",
            "label": "1987",
            "branches": [
                {
                    "kind": "statistic_change",
                    "topic": "energy",
                    "metric_key": "EIA_SEDS:TEPRB",
                    "metric_label": "Total primary energy production",
                    "value": 147630,
                    "previous_value": 142011,
                    "delta": 5619,
                    "unit": "Billion Btu",
                    "source_url": "https://api.eia.gov/v2/seds/data/",
                    "provider": "US_EIA"
                },
                {
                    "kind": "statistic_change",
                    "topic": "energy",
                    "metric_key": "EIA_SEDS:TETCB",
                    "metric_label": "Total energy consumption",
                    "value": 886824,
                    "previous_value": 878360,
                    "delta": 8464,
                    "unit": "Billion Btu",
                    "source_url": "https://api.eia.gov/v2/seds/data/",
                    "provider": "US_EIA"
                }
            ]
        },
        {
            "period": "1988",
            "year": "1988",
            "month": "",
            "label": "1988",
            "branches": [
                {
                    "kind": "statistic_change",
                    "topic": "energy",
                    "metric_key": "EIA_SEDS:TEPRB",
                    "metric_label": "Total primary energy production",
                    "value": 158302,
                    "previous_value": 147630,
                    "delta": 10672,
                    "unit": "Billion Btu",
                    "source_url": "https://api.eia.gov/v2/seds/data/",
                    "provider": "US_EIA"
                },
                {
                    "kind": "statistic_change",
                    "topic": "energy",
                    "metric_key": "EIA_SEDS:TETCB",
                    "metric_label": "Total energy consumption",
                    "value": 960660,
                    "previous_value": 886824,
                    "delta": 73836,
                    "unit": "Billion Btu",
                    "source_url": "https://api.eia.gov/v2/seds/data/",
                    "provider": "US_EIA"
                }
            ]
        },
        {
            "period": "1989",
            "year": "1989",
            "month": "",
            "label": "1989",
            "branches": [
                {
                    "kind": "statistic_change",
                    "topic": "energy",
                    "metric_key": "EIA_SEDS:TEPRB",
                    "metric_label": "Total primary energy production",
                    "value": 128630,
                    "previous_value": 158302,
                    "delta": -29672,
                    "unit": "Billion Btu",
                    "source_url": "https://api.eia.gov/v2/seds/data/",
                    "provider": "US_EIA"
                },
                {
                    "kind": "statistic_change",
                    "topic": "energy",
                    "metric_key": "EIA_SEDS:TETCB",
                    "metric_label": "Total energy consumption",
                    "value": 918981,
                    "previous_value": 960660,
                    "delta": -41679,
                    "unit": "Billion Btu",
                    "source_url": "https://api.eia.gov/v2/seds/data/",
                    "provider": "US_EIA"
                }
            ]
        },
        {
            "period": "1990",
            "year": "1990",
            "month": "",
            "label": "1990",
            "branches": [
                {
                    "kind": "statistic_change",
                    "topic": "energy",
                    "metric_key": "EIA_SEDS:TEPRB",
                    "metric_label": "Total primary energy production",
                    "value": 121971,
                    "previous_value": 128630,
                    "delta": -6659,
                    "unit": "Billion Btu",
                    "source_url": "https://api.eia.gov/v2/seds/data/",
                    "provider": "US_EIA"
                },
                {
                    "kind": "statistic_change",
                    "topic": "energy",
                    "metric_key": "EIA_SEDS:TETCB",
                    "metric_label": "Total energy consumption",
                    "value": 941873,
                    "previous_value": 918981,
                    "delta": 22892,
                    "unit": "Billion Btu",
                    "source_url": "https://api.eia.gov/v2/seds/data/",
                    "provider": "US_EIA"
                }
            ]
        },
        {
            "period": "1991",
            "year": "1991",
            "month": "",
            "label": "1991",
            "branches": [
                {
                    "kind": "statistic_change",
                    "topic": "energy",
                    "metric_key": "EIA_SEDS:TEPRB",
                    "metric_label": "Total primary energy production",
                    "value": 135837,
                    "previous_value": 121971,
                    "delta": 13866,
                    "unit": "Billion Btu",
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                {
                    "kind": "context_event",
                    "topic": "disaster",
                    "source_name": "National Weather Service",
                    "source_url": "https://www.weather.gov/safety/flood-states-ia",
                    "event_type": "disaster",
                    "policy_domain": "flood",
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                    "official_document_title": "Great Flood of 1993",
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                    "event_title_ko": "Great Flood로 Iowa 전역 대규모 피해",
                    "event_text_ko": "장기간의 강우와 하천 범람으로 Iowa 전역에 대규모 홍수 피해가 발생하고 Des Moines·Ames를 포함한 여러 지역의 주거·교통·공공서비스가 크게 영향을 받았다.",
                    "event_summary_ko": "장기간의 강우와 하천 범람으로 Iowa 전역에 대규모 홍수 피해가 발생하고 Des Moines·Ames를 포함한 여러 지역의 주거·교통·공공서비스가 크게 영향을 받았다.",
                    "event_significance_ko": "Iowa 재난사에서 홍수위험·상수도·교통·농업과 도시회복력을 함께 이해하는 핵심 사건이다.",
                    "event_regional_context_ko": "Des Moines와 Ames 같은 도시뿐 아니라 광범위한 농촌지역까지 영향을 받아 Iowa의 하천·농업지형이 가진 복합적 홍수위험을 보여 줬다.",
                    "event_background_ko": "장기간의 습한 조건과 반복된 강우가 주요 하천의 광범위한 범람으로 이어졌다.",
                    "event_outcome_ko": "이후 flood mitigation·emergency planning·water infrastructure resilience는 Iowa의 지속적인 재난관리 과제가 됐다.",
                    "event_data_context_ko": "현대 ACS 지표보다 앞선 재난이므로 최근 인구·소득·주택 변화의 직접 원인으로 연결하지 않는다.",
                    "event_title_en": "The Great Flood causes statewide disruption",
                    "event_text_en": "Prolonged rainfall and river flooding caused widespread disruption across Iowa, affecting housing, transportation and public services in places including Des Moines and Ames.",
                    "event_summary_en": "Prolonged rainfall and river flooding caused widespread disruption across Iowa, affecting housing, transportation and public services in places including Des Moines and Ames.",
                    "event_significance_en": "It is a defining disaster in Iowa history for understanding flood risk, public water, transportation, agriculture and urban resilience.",
                    "event_regional_context_en": "Impacts across both cities and rural areas showed the broad flood exposure created by Iowa's river systems and agricultural landscape.",
                    "event_background_en": "Persistent wet conditions and repeated rainfall drove widespread river flooding.",
                    "event_outcome_en": "Flood mitigation, emergency planning and water-infrastructure resilience remained continuing issues afterward.",
                    "event_data_context_en": "Because the disaster predates the ACS series used here, it is not treated as a direct cause of recent population, income or housing changes.",
                    "event_title_es": "La Great Flood causa una gran interrupción en Iowa",
                    "event_text_es": "Lluvias prolongadas e inundaciones fluviales causaron una gran interrupción en Iowa y afectaron vivienda, transporte y servicios públicos en lugares como Des Moines y Ames.",
                    "event_summary_es": "Lluvias prolongadas e inundaciones fluviales causaron una gran interrupción en Iowa y afectaron vivienda, transporte y servicios públicos en lugares como Des Moines y Ames.",
                    "event_significance_es": "Es un desastre definitorio de la historia de Iowa para comprender riesgo de inundación, agua pública, transporte, agricultura y resiliencia urbana.",
                    "event_regional_context_es": "Los impactos en ciudades y zonas rurales mostraron la amplia exposición a inundaciones creada por los sistemas fluviales y el paisaje agrícola de Iowa.",
                    "event_background_es": "Condiciones húmedas persistentes y lluvias repetidas provocaron inundaciones fluviales generalizadas.",
                    "event_outcome_es": "La mitigación de inundaciones, planificación de emergencias y resiliencia de infraestructura hídrica siguieron siendo temas importantes posteriormente.",
                    "event_data_context_es": "Como el desastre es anterior a las series ACS utilizadas aquí, no se trata como causa directa de cambios recientes de población, ingresos o vivienda.",
                    "event_related_places": [
                        "Des Moines",
                        "Ames"
                    ],
                    "event_title": "The Great Flood causes statewide disruption",
                    "event_text": "Prolonged rainfall and river flooding caused widespread disruption across Iowa, affecting housing, transportation and public services in places including Des Moines and Ames."
                }
            ]
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                    "value": 739808,
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                    "source_url": "https://api.eia.gov/v2/seds/data/",
                    "provider": "US_EIA"
                },
                {
                    "kind": "statistic_change",
                    "topic": "energy",
                    "metric_key": "EIA_SEDS:TETCB",
                    "metric_label": "Total energy consumption",
                    "value": 1349865,
                    "previous_value": 1503248,
                    "delta": -153383,
                    "unit": "Billion Btu",
                    "source_url": "https://api.eia.gov/v2/seds/data/",
                    "provider": "US_EIA"
                },
                {
                    "kind": "statistic_change",
                    "topic": "population",
                    "metric_key": "ACS:B01003_001E",
                    "metric_label": "Population",
                    "value": 3150011,
                    "previous_value": 3139508,
                    "delta": 10503,
                    "unit": "persons",
                    "source_url": "https://api.census.gov/data/2024/acs/acs5",
                    "provider": "US_CENSUS_DATA_API"
                },
                {
                    "kind": "statistic_change",
                    "topic": "income",
                    "metric_key": "ACS:B19013_001E",
                    "metric_label": "Median household income",
                    "value": 61836,
                    "previous_value": 60523,
                    "delta": 1313,
                    "unit": "US dollars",
                    "source_url": "https://api.census.gov/data/2024/acs/acs5",
                    "provider": "US_CENSUS_DATA_API"
                },
                {
                    "kind": "statistic_change",
                    "topic": "housing",
                    "metric_key": "ACS:B25077_001E",
                    "metric_label": "Median home value",
                    "value": 153900,
                    "previous_value": 147800,
                    "delta": 6100,
                    "unit": "US dollars",
                    "source_url": "https://api.census.gov/data/2024/acs/acs5",
                    "provider": "US_CENSUS_DATA_API"
                },
                {
                    "kind": "statistic_change",
                    "topic": "employment",
                    "metric_key": "ACS:UNEMPLOYMENT_RATE",
                    "metric_label": "Unemployment rate",
                    "value": 3.9193638203214523,
                    "previous_value": 3.732414739259458,
                    "delta": 0.18694908106199426,
                    "unit": "percent",
                    "source_url": "https://api.census.gov/data/2024/acs/acs5",
                    "provider": "US_CENSUS_DATA_API"
                },
                {
                    "kind": "context_event",
                    "topic": "disaster",
                    "source_name": "National Weather Service",
                    "source_url": "https://www.weather.gov/dmx/2020derecho",
                    "event_type": "disaster",
                    "policy_domain": "severe_wind",
                    "issuer": "National Weather Service / local and state emergency agencies",
                    "announcement_date": "2020-08-10",
                    "effective_date": "2020-08-10",
                    "official_document_title": "August Midwest Derecho",
                    "policy_status": "completed",
                    "event_title_ko": "Midwest Derecho가 Iowa를 관통",
                    "event_text_ko": "강력한 derecho가 Iowa를 가로지르며 중부와 동부 지역에 광범위한 강풍·전력·건물·수목 피해를 남겼다.",
                    "event_summary_ko": "강력한 derecho가 Iowa를 가로지르며 중부와 동부 지역에 광범위한 강풍·전력·건물·수목 피해를 남겼다.",
                    "event_significance_ko": "도시·농촌 인프라와 농업지역이 동시에 영향을 받은 최근 Iowa 재난사의 대표 사건이다.",
                    "event_regional_context_ko": "Des Moines권에서 동부 Iowa까지 긴 피해축이 형성되어 광역 전력·교통·농업 회복력의 중요성을 보여 줬다.",
                    "event_background_ko": "고온다습한 공기와 강한 대기 흐름 속에서 장수명 severe thunderstorm complex가 발달했다.",
                    "event_outcome_ko": "이후 전력·건물·수목·농업 피해 복구와 severe-weather preparedness가 이어졌다.",
                    "event_data_context_ko": "같은 시기의 에너지·인구·고용지표 변화와 직접 인과관계로 단정하지 않고 재난·복구 맥락으로 해석한다.",
                    "event_title_en": "A major derecho crosses Iowa",
                    "event_text_en": "A powerful derecho crossed Iowa and caused widespread wind, power, building and tree damage across central and eastern parts of the state.",
                    "event_summary_en": "A powerful derecho crossed Iowa and caused widespread wind, power, building and tree damage across central and eastern parts of the state.",
                    "event_significance_en": "It is a defining recent Iowa disaster because urban infrastructure, rural communities and agricultural areas were affected at the same time.",
                    "event_regional_context_en": "The long damage corridor from central into eastern Iowa highlighted the importance of regional power, transportation and agricultural resilience.",
                    "event_background_en": "A long-lived severe thunderstorm complex developed in a favorable warm, humid and strongly sheared environment.",
                    "event_outcome_en": "Recovery focused on power, buildings, trees and agricultural damage, alongside renewed severe-weather preparedness.",
                    "event_data_context_en": "It is interpreted as disaster and recovery context and not as a direct causal explanation for same-period energy, population or labor changes.",
                    "event_title_es": "Un gran derecho atraviesa Iowa",
                    "event_text_es": "Un potente derecho atravesó Iowa y causó daños generalizados por viento, electricidad, edificios y árboles en zonas centrales y orientales del estado.",
                    "event_summary_es": "Un potente derecho atravesó Iowa y causó daños generalizados por viento, electricidad, edificios y árboles en zonas centrales y orientales del estado.",
                    "event_significance_es": "Es un desastre reciente definitorio de Iowa porque afectó al mismo tiempo infraestructura urbana, comunidades rurales y zonas agrícolas.",
                    "event_regional_context_es": "El largo corredor de daños desde el centro hacia el este de Iowa destacó la importancia de la resiliencia regional de energía, transporte y agricultura.",
                    "event_background_es": "Un complejo de tormentas severas de larga duración se desarrolló en un entorno cálido, húmedo y con fuerte flujo atmosférico.",
                    "event_outcome_es": "La recuperación se centró en daños de electricidad, edificios, árboles y agricultura, junto con una preparación renovada ante tiempo severo.",
                    "event_data_context_es": "Se interpreta como contexto de desastre y recuperación y no como explicación causal directa de cambios contemporáneos de energía, población o empleo.",
                    "event_related_places": [
                        "Des Moines",
                        "Ames",
                        "Marshalltown",
                        "Eastern Iowa"
                    ],
                    "event_title": "A major derecho crosses Iowa",
                    "event_text": "A powerful derecho crossed Iowa and caused widespread wind, power, building and tree damage across central and eastern parts of the state."
                }
            ]
        },
        {
            "period": "2021",
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            "label": "2021",
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                    "kind": "statistic_change",
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                    "metric_key": "EIA_SEDS:TEPRB",
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                    "metric_label": "Total energy consumption",
                    "value": 1385997,
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                    "source_url": "https://api.census.gov/data/2024/acs/acs5",
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                    "metric_key": "EIA_SEDS:TEPRB",
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                    "metric_label": "Total energy consumption",
                    "value": 1428619,
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                    "source_url": "https://api.eia.gov/v2/seds/data/",
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                    "source_url": "https://api.census.gov/data/2024/acs/acs5",
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                {
                    "kind": "statistic_change",
                    "topic": "income",
                    "metric_key": "ACS:B19013_001E",
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                    "value": 70571,
                    "previous_value": 65429,
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                    "source_url": "https://api.census.gov/data/2024/acs/acs5",
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                },
                {
                    "kind": "statistic_change",
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                    "metric_key": "ACS:B25077_001E",
                    "metric_label": "Median home value",
                    "value": 181600,
                    "previous_value": 160700,
                    "delta": 20900,
                    "unit": "US dollars",
                    "source_url": "https://api.census.gov/data/2024/acs/acs5",
                    "provider": "US_CENSUS_DATA_API"
                },
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                    "kind": "statistic_change",
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                    "metric_key": "ACS:UNEMPLOYMENT_RATE",
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            "period": "2023",
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                },
                {
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                    "metric_label": "Total energy consumption",
                    "value": 1403266,
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                {
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                    "value": 3195937,
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                    "delta": 7101,
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                    "source_url": "https://api.census.gov/data/2024/acs/acs5",
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                },
                {
                    "kind": "statistic_change",
                    "topic": "income",
                    "metric_key": "ACS:B19013_001E",
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                    "source_url": "https://api.census.gov/data/2024/acs/acs5",
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                },
                {
                    "kind": "statistic_change",
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                    "metric_key": "ACS:B25077_001E",
                    "metric_label": "Median home value",
                    "value": 195900,
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                    "source_url": "https://api.census.gov/data/2024/acs/acs5",
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                    "source_url": "https://api.census.gov/data/2024/acs/acs5",
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        },
        {
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                {
                    "kind": "statistic_change",
                    "topic": "energy",
                    "metric_key": "EIA_SEDS:TEPRB",
                    "metric_label": "Total primary energy production",
                    "value": 825517,
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                {
                    "kind": "statistic_change",
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                    "metric_label": "Total energy consumption",
                    "value": 1398574,
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                    "source_url": "https://api.eia.gov/v2/seds/data/",
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                {
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                    "source_url": "https://api.census.gov/data/2024/acs/acs5",
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                },
                {
                    "kind": "statistic_change",
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                    "metric_key": "ACS:B19013_001E",
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                    "value": 75059,
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                    "source_url": "https://api.census.gov/data/2024/acs/acs5",
                    "provider": "US_CENSUS_DATA_API"
                },
                {
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                    "metric_key": "ACS:B25077_001E",
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                    "value": 208000,
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                    "unit": "US dollars",
                    "source_url": "https://api.census.gov/data/2024/acs/acs5",
                    "provider": "US_CENSUS_DATA_API"
                },
                {
                    "kind": "statistic_change",
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                    "provider": "US_CENSUS_DATA_API"
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        },
        {
            "year": "2026",
            "period": "2026",
            "label": "2026",
            "branches": [
                {
                    "kind": "context_event",
                    "topic": "budget",
                    "source_name": "www.legis.iowa.gov",
                    "source_url": "https://www.legis.iowa.gov/publications/fiscal/budgetAnalysis",
                    "event_type": "official_policy_announcement",
                    "policy_domain": "budget",
                    "issuer": "www.legis.iowa.gov",
                    "announcement_date": "2026",
                    "effective_date": "",
                    "official_document_title": "Annual State Budget Analysis",
                    "policy_status": "announced",
                    "event_title_ko": "Annual State Budget Analysis",
                    "event_text_ko": "Iowa과 직접 관련된 공식 발표로, 주요 내용은 “Annual State Budget Analysis”이다. 세부 영향은 공식 자료에 확인된 범위에서만 해석한다.",
                    "event_summary_ko": "Iowa과 직접 관련된 공식 발표로, 주요 내용은 “Annual State Budget Analysis”이다. 세부 영향은 공식 자료에 확인된 범위에서만 해석한다.",
                    "event_significance_ko": "Iowa과 직접 관련된 공식 발표로, 주요 내용은 “Annual State Budget Analysis”이다. 세부 영향은 공식 자료에 확인된 범위에서만 해석한다.",
                    "event_regional_context_ko": "Iowa과 직접 관련된 공식 발표로, 주요 내용은 “Annual State Budget Analysis”이다. 세부 영향은 공식 자료에 확인된 범위에서만 해석한다.",
                    "event_background_ko": "Iowa과 직접 관련된 공식 발표로, 주요 내용은 “Annual State Budget Analysis”이다. 세부 영향은 공식 자료에 확인된 범위에서만 해석한다.",
                    "event_outcome_ko": "공식 자료에 확인된 후속 결과만 이후 갱신에서 추가한다.",
                    "event_data_context_ko": "같은 시기의 지표와 함께 볼 수 있지만 별도 근거 없이 인과관계로 단정하지 않는다.",
                    "event_title_en": "Annual State Budget Analysis",
                    "event_text_en": "This is a directly relevant official development for Iowa: “Annual State Budget Analysis”. Its implications are limited to what the official source establishes.",
                    "event_summary_en": "This is a directly relevant official development for Iowa: “Annual State Budget Analysis”. Its implications are limited to what the official source establishes.",
                    "event_significance_en": "This is a directly relevant official development for Iowa: “Annual State Budget Analysis”. Its implications are limited to what the official source establishes.",
                    "event_regional_context_en": "This is a directly relevant official development for Iowa: “Annual State Budget Analysis”. Its implications are limited to what the official source establishes.",
                    "event_background_en": "This is a directly relevant official development for Iowa: “Annual State Budget Analysis”. Its implications are limited to what the official source establishes.",
                    "event_outcome_en": "Only source-confirmed outcomes are added in later updates.",
                    "event_data_context_en": "It can be read alongside same-period indicators without treating timing alone as proof of causation.",
                    "event_title_es": "Annual State Budget Analysis",
                    "event_text_es": "Este es un acontecimiento oficial directamente relevante para Iowa: «Annual State Budget Analysis». Su alcance se interpreta solo dentro de lo que establece la fuente oficial.",
                    "event_summary_es": "Este es un acontecimiento oficial directamente relevante para Iowa: «Annual State Budget Analysis». Su alcance se interpreta solo dentro de lo que establece la fuente oficial.",
                    "event_significance_es": "Este es un acontecimiento oficial directamente relevante para Iowa: «Annual State Budget Analysis». Su alcance se interpreta solo dentro de lo que establece la fuente oficial.",
                    "event_regional_context_es": "Este es un acontecimiento oficial directamente relevante para Iowa: «Annual State Budget Analysis». Su alcance se interpreta solo dentro de lo que establece la fuente oficial.",
                    "event_background_es": "Este es un acontecimiento oficial directamente relevante para Iowa: «Annual State Budget Analysis». Su alcance se interpreta solo dentro de lo que establece la fuente oficial.",
                    "event_outcome_es": "Solo se añaden resultados confirmados por fuentes en actualizaciones posteriores.",
                    "event_data_context_es": "Puede leerse junto con indicadores del mismo periodo sin tratar la coincidencia temporal como prueba de causalidad.",
                    "event_title": "Annual State Budget Analysis",
                    "event_text": "This is a directly relevant official development for Iowa: “Annual State Budget Analysis”. Its implications are limited to what the official source establishes."
                }
            ]
        }
    ],
    "places": [
        {
            "category": "government",
            "name": "Iowa State Capitol",
            "source_name": "Iowa Legislature",
            "source_url": "https://www.legis.iowa.gov/contacts/legisContact",
            "summary_ko": "Iowa State Capitol은 Des Moines의 주정부 중심지로 입법·행정 기능과 Iowa의 주도 정체성을 상징하는 핵심 공공시설이다.",
            "summary_en": "The Iowa State Capitol in Des Moines is the center of state government and a defining civic landmark for Iowa's legislative and executive functions.",
            "summary_es": "Iowa State Capitol, en Des Moines, es el centro del gobierno estatal y un hito cívico central para las funciones legislativas y ejecutivas de Iowa.",
            "summary": "The Iowa State Capitol in Des Moines is the center of state government and a defining civic landmark for Iowa's legislative and executive functions."
        },
        {
            "category": "education",
            "name": "Iowa State University",
            "source_name": "Iowa State University",
            "source_url": "https://historicexhibits.lib.iastate.edu/150/template/history.html",
            "summary_ko": "Iowa State University는 Ames의 대표 land-grant 연구대학으로 농업·공학·과학·extension과 지역혁신의 핵심 교육·연구 거점이다.",
            "summary_en": "Iowa State University in Ames is a major land-grant research university and an anchor for agriculture, engineering, science, extension and regional innovation.",
            "summary_es": "Iowa State University en Ames es una importante universidad pública de investigación land-grant y un centro de agricultura, ingeniería, ciencia, extensión e innovación regional.",
            "summary": "Iowa State University in Ames is a major land-grant research university and an anchor for agriculture, engineering, science, extension and regional innovation."
        },
        {
            "category": "education",
            "name": "University of Iowa",
            "source_name": "University of Iowa",
            "source_url": "https://uiowa.edu/about-iowa",
            "summary_ko": "University of Iowa는 Iowa City의 대표 공립 연구대학으로 교육·연구·의료·예술과 공공서비스 기능이 집중된다.",
            "summary_en": "The University of Iowa in Iowa City is a major public research university with important education, research, health-care, arts and public-service functions.",
            "summary_es": "University of Iowa en Iowa City es una importante universidad pública de investigación con funciones destacadas de educación, investigación, salud, artes y servicio público.",
            "summary": "The University of Iowa in Iowa City is a major public research university with important education, research, health-care, arts and public-service functions."
        },
        {
            "category": "nature",
            "name": "Backbone State Park",
            "source_name": "Iowa Department of Natural Resources",
            "source_url": "https://www.iowadnr.gov/places-go/state-parks/all-parks/backbone-state-park",
            "summary_ko": "Backbone State Park는 Iowa 최초의 주립공원으로 Maquoketa River의 암반 능선·숲·하이킹·휴양경관을 보전하는 대표 자연공간이다.",
            "summary_en": "Backbone State Park is Iowa's first state park and protects a distinctive Maquoketa River ridge landscape with forest, trails and public recreation.",
            "summary_es": "Backbone State Park es el primer parque estatal de Iowa y protege un paisaje singular de crestas del Maquoketa River con bosque, senderos y recreación pública.",
            "summary": "Backbone State Park is Iowa's first state park and protects a distinctive Maquoketa River ridge landscape with forest, trails and public recreation."
        },
        {
            "category": "landmark",
            "name": "Effigy Mounds National Monument",
            "source_name": "National Park Service",
            "source_url": "https://www.nps.gov/efmo/index.htm",
            "summary_ko": "Effigy Mounds National Monument는 Upper Mississippi River Valley의 American Indian mound landscape를 보전하며 Iowa의 Indigenous history와 자연경관을 함께 보여 주는 장소다.",
            "summary_en": "Effigy Mounds National Monument protects an American Indian mound landscape in the Upper Mississippi River Valley and connects Indigenous history with Iowa's natural setting.",
            "summary_es": "Effigy Mounds National Monument protege un paisaje de montículos American Indian en Upper Mississippi River Valley y conecta historia indígena con el entorno natural de Iowa.",
            "summary": "Effigy Mounds National Monument protects an American Indian mound landscape in the Upper Mississippi River Valley and connects Indigenous history with Iowa's natural setting."
        },
        {
            "category": "nature",
            "name": "Neal Smith National Wildlife Refuge",
            "source_name": "U.S. Fish and Wildlife Service",
            "source_url": "https://www.fws.gov/refuge/neal-smith/about-us",
            "summary_ko": "Neal Smith National Wildlife Refuge는 tallgrass prairie·oak savanna·sedge meadow를 복원·보전하며 Iowa의 대초원 생태계와 환경교육을 보여 주는 대표 보전 거점이다.",
            "summary_en": "Neal Smith National Wildlife Refuge restores and protects tallgrass prairie, oak savanna and sedge meadow and is a major conservation and environmental-education site in Iowa.",
            "summary_es": "Neal Smith National Wildlife Refuge restaura y protege tallgrass prairie, oak savanna y sedge meadow y es un importante centro de conservación y educación ambiental de Iowa.",
            "summary": "Neal Smith National Wildlife Refuge restores and protects tallgrass prairie, oak savanna and sedge meadow and is a major conservation and environmental-education site in Iowa."
        }
    ],
    "tables": [
        {
            "table_id": "key_metrics",
            "title": "Key metrics",
            "columns": [
                "metric",
                "latest_period",
                "latest_value",
                "unit",
                "first_period",
                "first_value",
                "change",
                "change_pct"
            ],
            "rows": [
                {
                    "metric": "Total primary energy production",
                    "topic": "energy",
                    "latest_period": "2024",
                    "latest_value": 825517,
                    "unit": "Billion Btu",
                    "first_period": "1985",
                    "first_value": 103984,
                    "change": 721533,
                    "change_pct": 693.8884828435143
                },
                {
                    "metric": "Total energy consumption",
                    "topic": "energy",
                    "latest_period": "2024",
                    "latest_value": 1398574,
                    "unit": "Billion Btu",
                    "first_period": "1985",
                    "first_value": 875272,
                    "change": 523302,
                    "change_pct": 59.787357530002105
                },
                {
                    "metric": "Population",
                    "topic": "population",
                    "latest_period": "2024",
                    "latest_value": 3210507,
                    "unit": "persons",
                    "first_period": "2011",
                    "first_value": 3032266,
                    "change": 178241,
                    "change_pct": 5.8781452550666735
                },
                {
                    "metric": "Median household income",
                    "topic": "income",
                    "latest_period": "2024",
                    "latest_value": 75059,
                    "unit": "US dollars",
                    "first_period": "2011",
                    "first_value": 50451,
                    "change": 24608,
                    "change_pct": 48.776040118134425
                },
                {
                    "metric": "Median home value",
                    "topic": "housing",
                    "latest_period": "2024",
                    "latest_value": 208000,
                    "unit": "US dollars",
                    "first_period": "2011",
                    "first_value": 121300,
                    "change": 86700,
                    "change_pct": 71.47568013190437
                },
                {
                    "metric": "Unemployment rate",
                    "topic": "employment",
                    "latest_period": "2024",
                    "latest_value": 3.5796008691795382,
                    "unit": "percent",
                    "first_period": "2011",
                    "first_value": 5.5058793777701585,
                    "change": -1.9262785085906202,
                    "change_pct": -34.985846518322184
                }
            ]
        },
        {
            "table_id": "history",
            "title": "Historical observations",
            "columns": [
                "period",
                "values"
            ],
            "rows": [
                {
                    "period": "2024",
                    "values": [
                        {
                            "metric": "Total primary energy production",
                            "value": 825517,
                            "unit": "Billion Btu"
                        },
                        {
                            "metric": "Total energy consumption",
                            "value": 1398574,
                            "unit": "Billion Btu"
                        },
                        {
                            "metric": "Population",
                            "value": 3210507,
                            "unit": "persons"
                        },
                        {
                            "metric": "Median household income",
                            "value": 75059,
                            "unit": "US dollars"
                        },
                        {
                            "metric": "Median home value",
                            "value": 208000,
                            "unit": "US dollars"
                        },
                        {
                            "metric": "Unemployment rate",
                            "value": 3.5796008691795382,
                            "unit": "percent"
                        }
                    ]
                },
                {
                    "period": "2023",
                    "values": [
                        {
                            "metric": "Total primary energy production",
                            "value": 784651,
                            "unit": "Billion Btu"
                        },
                        {
                            "metric": "Total energy consumption",
                            "value": 1403266,
                            "unit": "Billion Btu"
                        },
                        {
                            "metric": "Population",
                            "value": 3195937,
                            "unit": "persons"
                        },
                        {
                            "metric": "Median household income",
                            "value": 73147,
                            "unit": "US dollars"
                        },
                        {
                            "metric": "Median home value",
                            "value": 195900,
                            "unit": "US dollars"
                        },
                        {
                            "metric": "Unemployment rate",
                            "value": 3.631526410778616,
                            "unit": "percent"
                        }
                    ]
                },
                {
                    "period": "2022",
                    "values": [
                        {
                            "metric": "Total primary energy production",
                            "value": 776558,
                            "unit": "Billion Btu"
                        },
                        {
                            "metric": "Total energy consumption",
                            "value": 1428619,
                            "unit": "Billion Btu"
                        },
                        {
                            "metric": "Population",
                            "value": 3188836,
                            "unit": "persons"
                        },
                        {
                            "metric": "Median household income",
                            "value": 70571,
                            "unit": "US dollars"
                        },
                        {
                            "metric": "Median home value",
                            "value": 181600,
                            "unit": "US dollars"
                        },
                        {
                            "metric": "Unemployment rate",
                            "value": 3.8232900683103948,
                            "unit": "percent"
                        }
                    ]
                },
                {
                    "period": "2021",
                    "values": [
                        {
                            "metric": "Total primary energy production",
                            "value": 749384,
                            "unit": "Billion Btu"
                        },
                        {
                            "metric": "Total energy consumption",
                            "value": 1385997,
                            "unit": "Billion Btu"
                        },
                        {
                            "metric": "Population",
                            "value": 3179090,
                            "unit": "persons"
                        },
                        {
                            "metric": "Median household income",
                            "value": 65429,
                            "unit": "US dollars"
                        },
                        {
                            "metric": "Median home value",
                            "value": 160700,
                            "unit": "US dollars"
                        },
                        {
                            "metric": "Unemployment rate",
                            "value": 3.9070466758680875,
                            "unit": "percent"
                        }
                    ]
                },
                {
                    "period": "2020",
                    "values": [
                        {
                            "metric": "Total primary energy production",
                            "value": 739808,
                            "unit": "Billion Btu"
                        },
                        {
                            "metric": "Total energy consumption",
                            "value": 1349865,
                            "unit": "Billion Btu"
                        },
                        {
                            "metric": "Population",
                            "value": 3150011,
                            "unit": "persons"
                        },
                        {
                            "metric": "Median household income",
                            "value": 61836,
                            "unit": "US dollars"
                        },
                        {
                            "metric": "Median home value",
                            "value": 153900,
                            "unit": "US dollars"
                        },
                        {
                            "metric": "Unemployment rate",
                            "value": 3.9193638203214523,
                            "unit": "percent"
                        }
                    ]
                },
                {
                    "period": "2019",
                    "values": [
                        {
                            "metric": "Total primary energy production",
                            "value": 806716,
                            "unit": "Billion Btu"
                        },
                        {
                            "metric": "Total energy consumption",
                            "value": 1503248,
                            "unit": "Billion Btu"
                        },
                        {
                            "metric": "Population",
                            "value": 3139508,
                            "unit": "persons"
                        },
                        {
                            "metric": "Median household income",
                            "value": 60523,
                            "unit": "US dollars"
                        },
                        {
                            "metric": "Median home value",
                            "value": 147800,
                            "unit": "US dollars"
                        },
                        {
                            "metric": "Unemployment rate",
                            "value": 3.732414739259458,
                            "unit": "percent"
                        }
                    ]
                },
                {
                    "period": "2018",
                    "values": [
                        {
                            "metric": "Total primary energy production",
                            "value": 789399,
                            "unit": "Billion Btu"
                        },
                        {
                            "metric": "Total energy consumption",
                            "value": 1521108,
                            "unit": "Billion Btu"
                        },
                        {
                            "metric": "Population",
                            "value": 3132499,
                            "unit": "persons"
                        },
                        {
                            "metric": "Median household income",
                            "value": 58580,
                            "unit": "US dollars"
                        },
                        {
                            "metric": "Median home value",
                            "value": 142300,
                            "unit": "US dollars"
                        },
                        {
                            "metric": "Unemployment rate",
                            "value": 3.894196980110432,
                            "unit": "percent"
                        }
                    ]
                },
                {
                    "period": "2017",
                    "values": [
                        {
                            "metric": "Total primary energy production",
                            "value": 761002,
                            "unit": "Billion Btu"
                        },
                        {
                            "metric": "Total energy consumption",
                            "value": 1450929,
                            "unit": "Billion Btu"
                        },
                        {
                            "metric": "Population",
                            "value": 3118102,
                            "unit": "persons"
                        },
                        {
                            "metric": "Median household income",
                            "value": 56570,
                            "unit": "US dollars"
                        },
                        {
                            "metric": "Median home value",
                            "value": 137200,
                            "unit": "US dollars"
                        },
                        {
                            "metric": "Unemployment rate",
                            "value": 4.135944810922759,
                            "unit": "percent"
                        }
                    ]
                },
                {
                    "period": "2016",
                    "values": [
                        {
                            "metric": "Total primary energy production",
                            "value": 728409,
                            "unit": "Billion Btu"
                        },
                        {
                            "metric": "Total energy consumption",
                            "value": 1413797,
                            "unit": "Billion Btu"
                        },
                        {
                            "metric": "Population",
                            "value": 3106589,
                            "unit": "persons"
                        },
                        {
                            "metric": "Median household income",
                            "value": 54570,
                            "unit": "US dollars"
                        },
                        {
                            "metric": "Median home value",
                            "value": 132800,
                            "unit": "US dollars"
                        },
                        {
                            "metric": "Unemployment rate",
                            "value": 4.528751548151031,
                            "unit": "percent"
                        }
                    ]
                },
                {
                    "period": "2015",
                    "values": [
                        {
                            "metric": "Total primary energy production",
                            "value": 710147,
                            "unit": "Billion Btu"
                        },
                        {
                            "metric": "Total energy consumption",
                            "value": 1404968,
                            "unit": "Billion Btu"
                        },
                        {
                            "metric": "Population",
                            "value": 3093526,
                            "unit": "persons"
                        },
                        {
                            "metric": "Median household income",
                            "value": 53183,
                            "unit": "US dollars"
                        },
                        {
                            "metric": "Median home value",
                            "value": 129200,
                            "unit": "US dollars"
                        },
                        {
                            "metric": "Unemployment rate",
                            "value": 4.937939700769372,
                            "unit": "percent"
                        }
                    ]
                },
                {
                    "period": "2014",
                    "values": [
                        {
                            "metric": "Total primary energy production",
                            "value": 665426,
                            "unit": "Billion Btu"
                        },
                        {
                            "metric": "Total energy consumption",
                            "value": 1444176,
                            "unit": "Billion Btu"
                        },
                        {
                            "metric": "Population",
                            "value": 3078116,
                            "unit": "persons"
                        },
                        {
                            "metric": "Median household income",
                            "value": 52716,
                            "unit": "US dollars"
                        },
                        {
                            "metric": "Median home value",
                            "value": 126300,
                            "unit": "US dollars"
                        },
                        {
                            "metric": "Unemployment rate",
                            "value": 5.412777724640506,
                            "unit": "percent"
                        }
                    ]
                },
                {
                    "period": "2013",
                    "values": [
                        {
                            "metric": "Total primary energy production",
                            "value": 660735,
                            "unit": "Billion Btu"
                        },
                        {
                            "metric": "Total energy consumption",
                            "value": 1430536,
                            "unit": "Billion Btu"
                        },
                        {
                            "metric": "Population",
                            "value": 3062553,
                            "unit": "persons"
                        },
                        {
                            "metric": "Median household income",
                            "value": 51843,
                            "unit": "US dollars"
                        },
                        {
                            "metric": "Median home value",
                            "value": 124300,
                            "unit": "US dollars"
                        },
                        {
                            "metric": "Unemployment rate",
                            "value": 5.759483186008254,
                            "unit": "percent"
                        }
                    ]
                },
                {
                    "period": "2012",
                    "values": [
                        {
                            "metric": "Total primary energy production",
                            "value": 632378,
                            "unit": "Billion Btu"
                        },
                        {
                            "metric": "Total energy consumption",
                            "value": 1358083,
                            "unit": "Billion Btu"
                        },
                        {
                            "metric": "Population",
                            "value": 3047646,
                            "unit": "persons"
                        },
                        {
                            "metric": "Median household income",
                            "value": 51129,
                            "unit": "US dollars"
                        },
                        {
                            "metric": "Median home value",
                            "value": 123000,
                            "unit": "US dollars"
                        },
                        {
                            "metric": "Unemployment rate",
                            "value": 5.559467000443297,
                            "unit": "percent"
                        }
                    ]
                },
                {
                    "period": "2011",
                    "values": [
                        {
                            "metric": "Total primary energy production",
                            "value": 650111,
                            "unit": "Billion Btu"
                        },
                        {
                            "metric": "Total energy consumption",
                            "value": 1441420,
                            "unit": "Billion Btu"
                        },
                        {
                            "metric": "Population",
                            "value": 3032266,
                            "unit": "persons"
                        },
                        {
                            "metric": "Median household income",
                            "value": 50451,
                            "unit": "US dollars"
                        },
                        {
                            "metric": "Median home value",
                            "value": 121300,
                            "unit": "US dollars"
                        },
                        {
                            "metric": "Unemployment rate",
                            "value": 5.5058793777701585,
                            "unit": "percent"
                        }
                    ]
                },
                {
                    "period": "2010",
                    "values": [
                        {
                            "metric": "Total primary energy production",
                            "value": 600941,
                            "unit": "Billion Btu"
                        },
                        {
                            "metric": "Total energy consumption",
                            "value": 1442010,
                            "unit": "Billion Btu"
                        }
                    ]
                },
                {
                    "period": "2009",
                    "values": [
                        {
                            "metric": "Total primary energy production",
                            "value": 543494,
                            "unit": "Billion Btu"
                        },
                        {
                            "metric": "Total energy consumption",
                            "value": 1398438,
                            "unit": "Billion Btu"
                        }
                    ]
                },
                {
                    "period": "2008",
                    "values": [
                        {
                            "metric": "Total primary energy production",
                            "value": 436961,
                            "unit": "Billion Btu"
                        },
                        {
                            "metric": "Total energy consumption",
                            "value": 1412115,
                            "unit": "Billion Btu"
                        }
                    ]
                },
                {
                    "period": "2007",
                    "values": [
                        {
                            "metric": "Total primary energy production",
                            "value": 365898,
                            "unit": "Billion Btu"
                        },
                        {
                            "metric": "Total energy consumption",
                            "value": 1354377,
                            "unit": "Billion Btu"
                        }
                    ]
                },
                {
                    "period": "2006",
                    "values": [
                        {
                            "metric": "Total primary energy production",
                            "value": 303354,
                            "unit": "Billion Btu"
                        },
                        {
                            "metric": "Total energy consumption",
                            "value": 1281045,
                            "unit": "Billion Btu"
                        }
                    ]
                },
                {
                    "period": "2005",
                    "values": [
                        {
                            "metric": "Total primary energy production",
                            "value": 245341,
                            "unit": "Billion Btu"
                        },
                        {
                            "metric": "Total energy consumption",
                            "value": 1259846,
                            "unit": "Billion Btu"
                        }
                    ]
                }
            ]
        }
    ],
    "sources": [
        {
            "provider": "US_EIA",
            "source_url": "https://api.eia.gov/v2/seds/data/",
            "dataset_key": "TEPRB",
            "metric": "Total primary energy production"
        },
        {
            "provider": "US_EIA",
            "source_url": "https://api.eia.gov/v2/seds/data/",
            "dataset_key": "TETCB",
            "metric": "Total energy consumption"
        },
        {
            "provider": "US_CENSUS_DATA_API",
            "source_url": "https://api.census.gov/data/2024/acs/acs5",
            "dataset_key": "B01003_001E",
            "metric": "Population"
        },
        {
            "provider": "US_CENSUS_DATA_API",
            "source_url": "https://api.census.gov/data/2024/acs/acs5",
            "dataset_key": "B19013_001E",
            "metric": "Median household income"
        },
        {
            "provider": "US_CENSUS_DATA_API",
            "source_url": "https://api.census.gov/data/2024/acs/acs5",
            "dataset_key": "B25077_001E",
            "metric": "Median home value"
        },
        {
            "provider": "US_CENSUS_DATA_API",
            "source_url": "https://api.census.gov/data/2024/acs/acs5",
            "dataset_key": "B23025_003E+B23025_005E",
            "metric": "Unemployment rate"
        },
        {
            "provider": "State Historical Society of Iowa",
            "metric": "Iowa Territory is established",
            "dataset_key": "REGIONAL_EVENT",
            "source_url": "https://history.iowa.gov/learn/k-12-education/professional-learning/iowa-history-course/unit-2-iowa-territory",
            "source_type": "CHAT_SOURCE_BACKED_EVENT"
        },
        {
            "provider": "Iowa Legislature",
            "metric": "Iowa becomes a state",
            "dataset_key": "REGIONAL_EVENT",
            "source_url": "https://www.legis.iowa.gov/law/statutory/constitution/constConventions?year=1846",
            "source_type": "CHAT_SOURCE_BACKED_EVENT"
        },
        {
            "provider": "Iowa Legislature",
            "metric": "Iowa adopts its current state constitution",
            "dataset_key": "REGIONAL_EVENT",
            "source_url": "https://www.legis.iowa.gov/law/statutory/constitution",
            "source_type": "CHAT_SOURCE_BACKED_EVENT"
        },
        {
            "provider": "Iowa State University",
            "metric": "Iowa Agricultural College is established",
            "dataset_key": "REGIONAL_EVENT",
            "source_url": "https://historicexhibits.lib.iastate.edu/150/template/history.html",
            "source_type": "CHAT_SOURCE_BACKED_EVENT"
        },
        {
            "provider": "Iowa Department of Natural Resources",
            "metric": "Backbone becomes Iowa's first state park",
            "dataset_key": "REGIONAL_EVENT",
            "source_url": "https://www.iowadnr.gov/places-go/state-parks/all-parks/backbone-state-park",
            "source_type": "CHAT_SOURCE_BACKED_EVENT"
        },
        {
            "provider": "State of Iowa",
            "metric": "Iowa adopts the Alternative Energy Production Law",
            "dataset_key": "REGIONAL_EVENT",
            "source_url": "https://publications.iowa.gov/31438/1/IEP_Appendices_full.pdf",
            "source_type": "CHAT_SOURCE_BACKED_EVENT"
        },
        {
            "provider": "National Weather Service",
            "metric": "The Great Flood causes statewide disruption",
            "dataset_key": "REGIONAL_EVENT",
            "source_url": "https://www.weather.gov/safety/flood-states-ia",
            "source_type": "CHAT_SOURCE_BACKED_EVENT"
        },
        {
            "provider": "National Weather Service",
            "metric": "A major derecho crosses Iowa",
            "dataset_key": "REGIONAL_EVENT",
            "source_url": "https://www.weather.gov/dmx/2020derecho",
            "source_type": "CHAT_SOURCE_BACKED_EVENT"
        },
        {
            "provider": "www.legis.iowa.gov",
            "metric": "Annual State Budget Analysis",
            "dataset_key": "REGIONAL_EVENT",
            "source_url": "https://www.legis.iowa.gov/publications/fiscal/budgetAnalysis",
            "source_type": "CHAT_SOURCE_BACKED_EVENT"
        }
    ],
    "narrative": "Iowa's most striking long-run shift is the expansion of its energy-production base. Population, household income and home value rise more steadily, while unemployment trends lower after an early high. Read alongside agriculture, research universities, prairie conservation and major weather disasters, the data shows several very different kinds of regional change moving at once. Energy production is Iowa's biggest structural shift Primary energy production spends the early part of the series within a relatively narrow range and then expands rapidly. The later series establishes a much higher production base, and recent observations recover beyond the pandemic-era decline. Total energy consumption also rises over the long run, but much more gradually. The difference in pace shows that Iowa's energy story cannot be reduced to stronger local demand alone. Moderate population growth sits beside faster housing appreciation Population rises in every observation, but the pace is relatively gradual. Median home value increases more strongly in the later period, so statewide demographic growth alone does not explain the housing pattern. Des Moines, Ames and Iowa City have different job, education and housing systems from many rural communities. The statewide average is useful for direction, but local affordability and growth pressure can vary considerably. Income rises while unemployment moves lower Median household income rises throughout the series and gains momentum later. Unemployment follows the opposite long-run direction after an early high, with only a modest pandemic-era interruption before declining again. Agriculture, manufacturing, education, health care and services all contribute to Iowa's labor structure. That mix makes statewide employment trends more useful when paired with industry and local context. Universities, conservation and disaster history broaden the regional picture Iowa State University and the University of Iowa provide different research, education, health and public-service functions. Effigy Mounds and Neal Smith refuge add Indigenous history, prairie restoration and ecological conservation to a state often viewed primarily through agriculture. The Great Flood and the derecho demonstrate the exposure of rivers, power systems, transportation and agriculture to major weather shocks. Those environmental and infrastructure pressures are an important part of Iowa's regional history alongside economic indicators. Sources US_EIA · Total primary energy productionUS_EIA · Total energy consumptionUS_CENSUS_DATA_API · PopulationUS_CENSUS_DATA_API · Median household incomeUS_CENSUS_DATA_API · Median home valueUS_CENSUS_DATA_API · Unemployment rateState Historical Society of Iowa · Iowa Territory is establishedIowa Legislature · Iowa becomes a stateIowa Legislature · Iowa adopts its current state constitutionIowa State University · Iowa Agricultural College is establishedIowa Department of Natural Resources · Backbone becomes Iowa's first state parkState of Iowa · Iowa adopts the Alternative Energy Production LawNational Weather Service · The Great Flood causes statewide disruptionNational Weather Service · A major derecho crosses Iowawww.legis.iowa.gov · Annual State Budget Analysis FAQ Which Iowa indicator changes most dramatically over the long run? Primary energy production. The shift between the early and later production ranges is much larger than the change visible in the other core indicators. Can home values rise faster than population? Yes. Housing values also respond to supply, financing conditions, construction costs, local demand and movement between communities, so statewide population alone does not determine housing change. What matters for understanding Iowa beyond agriculture? The research roles of Ames and Iowa City, state-government functions in Des Moines, prairie and Mississippi River Valley conservation, and resilience to floods and severe wind are all important parts of the regional picture. Iowa combines a major expansion in energy production with moderate population growth, persistent increases in income and home value, and a lower long-run unemployment profile. Land-grant research, agriculture and manufacturing, prairie conservation and recurring flood and wind hazards give those trends a distinctly Iowa regional context."
}