{
    "contract": "GMI_DATALAB_PUBLIC_EXPORT_V1",
    "report_id": "RH-259B8054210B1263",
    "region_id": "US-IL",
    "language": "en",
    "title": "Illinois Population, Economy, Jobs & Key Trends | Data Lab",
    "url": "https://greenblog.co.kr/en/data-report/illinois-population-economy-jobs-key-trends-data-lab-4/",
    "region": {
        "region_key": "us_il",
        "region_id": "US-IL",
        "region_name": "Illinois",
        "geo_level": "state"
    },
    "region_profile": [
        {
            "label": "Geography level",
            "value": "State"
        },
        {
            "label": "Parent geography",
            "value": "United States"
        },
        {
            "label": "Capital",
            "value": "Springfield"
        },
        {
            "label": "Largest city",
            "value": "Chicago"
        },
        {
            "label": "Time zone",
            "value": "Central Time"
        },
        {
            "label": "State capital",
            "value": "Springfield"
        },
        {
            "label": "Largest city",
            "value": "Chicago"
        },
        {
            "label": "Major research and education hub",
            "value": "University of Illinois Urbana-Champaign"
        },
        {
            "label": "Latest population",
            "value": "12.69M"
        },
        {
            "label": "Tracked indicators",
            "value": "6"
        },
        {
            "label": "Observation period",
            "value": "1818–2024"
        }
    ],
    "coverage": {
        "period_start": "1818",
        "period_end": "2024"
    },
    "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": "2000",
                    "value": 1888016
                },
                {
                    "period": "2001",
                    "value": 1907736
                },
                {
                    "period": "2002",
                    "value": 1911612
                },
                {
                    "period": "2003",
                    "value": 1934954
                },
                {
                    "period": "2004",
                    "value": 1899420
                },
                {
                    "period": "2005",
                    "value": 1896706
                },
                {
                    "period": "2006",
                    "value": 1917259
                },
                {
                    "period": "2007",
                    "value": 1973324
                },
                {
                    "period": "2008",
                    "value": 1992350
                },
                {
                    "period": "2009",
                    "value": 2068369
                },
                {
                    "period": "2010",
                    "value": 2096733
                },
                {
                    "period": "2011",
                    "value": 2196966
                },
                {
                    "period": "2012",
                    "value": 2439966
                },
                {
                    "period": "2013",
                    "value": 2518395
                },
                {
                    "period": "2014",
                    "value": 2680437
                },
                {
                    "period": "2015",
                    "value": 2617505
                },
                {
                    "period": "2016",
                    "value": 2371898
                },
                {
                    "period": "2017",
                    "value": 2451957
                },
                {
                    "period": "2018",
                    "value": 2462419
                },
                {
                    "period": "2019",
                    "value": 2385846
                },
                {
                    "period": "2020",
                    "value": 2074443
                },
                {
                    "period": "2021",
                    "value": 2164684
                },
                {
                    "period": "2022",
                    "value": 2218638
                },
                {
                    "period": "2023",
                    "value": 2202042
                },
                {
                    "period": "2024",
                    "value": 2172437
                }
            ],
            "summary": {
                "first_period": "2000",
                "first_value": 1888016,
                "latest_period": "2024",
                "latest_value": 2172437,
                "change": 284421,
                "change_pct": 15.064543944542844
            }
        },
        {
            "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": "2000",
                    "value": 4028341
                },
                {
                    "period": "2001",
                    "value": 3904632
                },
                {
                    "period": "2002",
                    "value": 3919273
                },
                {
                    "period": "2003",
                    "value": 3944694
                },
                {
                    "period": "2004",
                    "value": 3992115
                },
                {
                    "period": "2005",
                    "value": 4138872
                },
                {
                    "period": "2006",
                    "value": 3988635
                },
                {
                    "period": "2007",
                    "value": 4075892
                },
                {
                    "period": "2008",
                    "value": 4070403
                },
                {
                    "period": "2009",
                    "value": 3841146
                },
                {
                    "period": "2010",
                    "value": 3955722
                },
                {
                    "period": "2011",
                    "value": 3932828
                },
                {
                    "period": "2012",
                    "value": 3802475
                },
                {
                    "period": "2013",
                    "value": 3960891
                },
                {
                    "period": "2014",
                    "value": 4036853
                },
                {
                    "period": "2015",
                    "value": 3869319
                },
                {
                    "period": "2016",
                    "value": 3873296
                },
                {
                    "period": "2017",
                    "value": 3830008
                },
                {
                    "period": "2018",
                    "value": 3957944
                },
                {
                    "period": "2019",
                    "value": 3883106
                },
                {
                    "period": "2020",
                    "value": 3544398
                },
                {
                    "period": "2021",
                    "value": 3627711
                },
                {
                    "period": "2022",
                    "value": 3668788
                },
                {
                    "period": "2023",
                    "value": 3479416
                },
                {
                    "period": "2024",
                    "value": 3434701
                }
            ],
            "summary": {
                "first_period": "2000",
                "first_value": 4028341,
                "latest_period": "2024",
                "latest_value": 3434701,
                "change": -593640,
                "change_pct": -14.736587592758408
            }
        },
        {
            "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": 12790182
                },
                {
                    "period": "2012",
                    "value": 12823860
                },
                {
                    "period": "2013",
                    "value": 12848554
                },
                {
                    "period": "2014",
                    "value": 12868747
                },
                {
                    "period": "2015",
                    "value": 12873761
                },
                {
                    "period": "2016",
                    "value": 12851684
                },
                {
                    "period": "2017",
                    "value": 12854526
                },
                {
                    "period": "2018",
                    "value": 12821497
                },
                {
                    "period": "2019",
                    "value": 12770631
                },
                {
                    "period": "2020",
                    "value": 12716164
                },
                {
                    "period": "2021",
                    "value": 12821813
                },
                {
                    "period": "2022",
                    "value": 12757634
                },
                {
                    "period": "2023",
                    "value": 12692653
                },
                {
                    "period": "2024",
                    "value": 12694798
                }
            ],
            "summary": {
                "first_period": "2011",
                "first_value": 12790182,
                "latest_period": "2024",
                "latest_value": 12694798,
                "change": -95384,
                "change_pct": -0.7457595208574828
            }
        },
        {
            "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": 56576
                },
                {
                    "period": "2012",
                    "value": 56853
                },
                {
                    "period": "2013",
                    "value": 56797
                },
                {
                    "period": "2014",
                    "value": 57166
                },
                {
                    "period": "2015",
                    "value": 57574
                },
                {
                    "period": "2016",
                    "value": 59196
                },
                {
                    "period": "2017",
                    "value": 61229
                },
                {
                    "period": "2018",
                    "value": 63575
                },
                {
                    "period": "2019",
                    "value": 65886
                },
                {
                    "period": "2020",
                    "value": 68428
                },
                {
                    "period": "2021",
                    "value": 72563
                },
                {
                    "period": "2022",
                    "value": 78433
                },
                {
                    "period": "2023",
                    "value": 81702
                },
                {
                    "period": "2024",
                    "value": 83390
                }
            ],
            "summary": {
                "first_period": "2011",
                "first_value": 56576,
                "latest_period": "2024",
                "latest_value": 83390,
                "change": 26814,
                "change_pct": 47.394654977375566
            }
        },
        {
            "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": 198500
                },
                {
                    "period": "2012",
                    "value": 190800
                },
                {
                    "period": "2013",
                    "value": 182300
                },
                {
                    "period": "2014",
                    "value": 175700
                },
                {
                    "period": "2015",
                    "value": 173800
                },
                {
                    "period": "2016",
                    "value": 174800
                },
                {
                    "period": "2017",
                    "value": 179700
                },
                {
                    "period": "2018",
                    "value": 187200
                },
                {
                    "period": "2019",
                    "value": 194500
                },
                {
                    "period": "2020",
                    "value": 202100
                },
                {
                    "period": "2021",
                    "value": 212600
                },
                {
                    "period": "2022",
                    "value": 239100
                },
                {
                    "period": "2023",
                    "value": 250500
                },
                {
                    "period": "2024",
                    "value": 263300
                }
            ],
            "summary": {
                "first_period": "2011",
                "first_value": 198500,
                "latest_period": "2024",
                "latest_value": 263300,
                "change": 64800,
                "change_pct": 32.6448362720403
            }
        },
        {
            "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": 9.34114133087567
                },
                {
                    "period": "2012",
                    "value": 9.90983110666356
                },
                {
                    "period": "2013",
                    "value": 10.458616114559089
                },
                {
                    "period": "2014",
                    "value": 9.991073762771592
                },
                {
                    "period": "2015",
                    "value": 9.089461550572075
                },
                {
                    "period": "2016",
                    "value": 8.168486992638654
                },
                {
                    "period": "2017",
                    "value": 7.362696301478069
                },
                {
                    "period": "2018",
                    "value": 6.560591964434589
                },
                {
                    "period": "2019",
                    "value": 5.943279129525028
                },
                {
                    "period": "2020",
                    "value": 5.958204718800669
                },
                {
                    "period": "2021",
                    "value": 6.17722478409527
                },
                {
                    "period": "2022",
                    "value": 5.955906641825619
                },
                {
                    "period": "2023",
                    "value": 5.796747319574941
                },
                {
                    "period": "2024",
                    "value": 5.838276859726518
                }
            ],
            "summary": {
                "first_period": "2011",
                "first_value": 9.34114133087567,
                "latest_period": "2024",
                "latest_value": 5.838276859726518,
                "change": -3.5028644711491523,
                "change_pct": -37.499319912557
            }
        }
    ],
    "timeline": [
        {
            "year": "1818",
            "period": "1818",
            "label": "1818",
            "branches": [
                {
                    "kind": "context_event",
                    "topic": "administration",
                    "source_name": "State of Illinois",
                    "source_url": "https://www.illinois.gov/government/executive-orders/executive-order.executive-order-number-07.2014.html",
                    "event_type": "",
                    "policy_domain": "",
                    "issuer": "",
                    "announcement_date": "",
                    "effective_date": "",
                    "official_document_title": "",
                    "policy_status": "",
                    "event_title_ko": "Illinois의 주 승격",
                    "event_text_ko": "Illinois가 연방의 주로 편입되면서 독립된 주 정부 체계가 출범했다.",
                    "event_summary_ko": "Illinois의 행정·법제 역사를 이해하는 출발점이다. 이후 수도 이동과 도시 성장이 이어지는 장기 시간축의 기준이 된다.",
                    "event_significance_ko": "현재의 주 정부 제도와 Springfield의 행정적 역할을 설명하는 데 필요한 기본 역사다.",
                    "event_regional_context_ko": "Illinois는 영토 단계에서 주 정부 단계로 전환하며 자체 헌정·행정 체계를 갖추게 되었다.",
                    "event_background_ko": "이후 주 수도는 여러 도시를 거쳐 Springfield로 정착했다.",
                    "event_outcome_ko": "이후 주 수도는 여러 도시를 거쳐 Springfield로 정착했다.",
                    "event_data_context_ko": "현재 화면의 에너지·가계 지표는 훨씬 뒤 시기부터 시작하므로 이 사건은 통계 변화의 원인이 아니라 장기 역사 맥락으로 읽어야 한다.",
                    "event_title_en": "Illinois becomes a state",
                    "event_text_en": "Illinois entered the Union as a state, establishing its own state government.",
                    "event_summary_en": "This is a foundational milestone for understanding Illinois government and administration. It sets the long historical frame for later capital moves and urban growth.",
                    "event_significance_en": "It provides essential context for the modern state government and Springfield’s administrative role.",
                    "event_regional_context_en": "Illinois moved from territorial status to state government with its own constitutional and administrative framework.",
                    "event_background_en": "The state capital later moved through several locations before settling in Springfield.",
                    "event_outcome_en": "The state capital later moved through several locations before settling in Springfield.",
                    "event_data_context_en": "The energy and household indicators shown elsewhere begin much later, so this milestone is historical context rather than a cause of those statistical changes.",
                    "event_title_es": "Illinois se convierte en estado",
                    "event_text_es": "Illinois ingresó en la Unión como estado y estableció su propio gobierno estatal.",
                    "event_summary_es": "Es un hito fundacional para comprender el gobierno y la administración de Illinois. Establece el marco histórico de largo plazo para los posteriores cambios de capital y el crecimiento urbano.",
                    "event_significance_es": "Aporta el contexto esencial para el gobierno estatal actual y el papel administrativo de Springfield.",
                    "event_regional_context_es": "Illinois pasó de territorio a gobierno estatal con su propio marco constitucional y administrativo.",
                    "event_background_es": "La capital estatal pasó después por varias ubicaciones antes de establecerse en Springfield.",
                    "event_outcome_es": "La capital estatal pasó después por varias ubicaciones antes de establecerse en Springfield.",
                    "event_data_context_es": "Los indicadores de energía y hogares comienzan mucho después, por lo que este hito debe leerse como contexto histórico y no como causa de esos cambios estadísticos.",
                    "event_related_places": [
                        "Springfield"
                    ],
                    "event_title": "Illinois becomes a state",
                    "event_text": "Illinois entered the Union as a state, establishing its own state government."
                }
            ]
        },
        {
            "year": "1837",
            "period": "1837",
            "label": "1837",
            "branches": [
                {
                    "kind": "context_event",
                    "topic": "administration",
                    "source_name": "State of Illinois",
                    "source_url": "https://www.illinois.gov/government/executive-orders/executive-order.executive-order-number-07.2014.html",
                    "event_type": "",
                    "policy_domain": "",
                    "issuer": "",
                    "announcement_date": "",
                    "effective_date": "",
                    "official_document_title": "",
                    "policy_status": "",
                    "event_title_ko": "주 수도의 Springfield 이전 결정",
                    "event_text_ko": "주 의회가 Springfield를 새 수도로 선택하면서 주 정부의 중심이 현재의 위치로 이동하는 전환점이 마련되었다.",
                    "event_summary_ko": "Springfield가 Illinois의 행정 중심이 된 결정적 사건이다. 오늘날의 주 의사당·Lincoln 관련 공공기관 네트워크를 이해하는 배경이 된다.",
                    "event_significance_ko": "Chicago가 경제·교통의 핵심으로 성장한 것과 달리 Springfield는 주 정부와 역사 유산의 중심이라는 별도 역할을 갖게 되었다.",
                    "event_regional_context_ko": "초기 Illinois의 수도는 Kaskaskia와 Vandalia를 거쳤고, 이후 Springfield가 장기적인 행정 중심으로 선택되었다.",
                    "event_background_ko": "Springfield의 수도 기능은 오늘날까지 이어진다.",
                    "event_outcome_ko": "Springfield의 수도 기능은 오늘날까지 이어진다.",
                    "event_data_context_ko": "현재 통계 시계열과 직접 연결되는 사건은 아니며, 지역의 행정 구조와 장소 네트워크를 이해하기 위한 역사적 기준점이다.",
                    "event_title_en": "Illinois chooses Springfield as the state capital",
                    "event_text_en": "The legislature selected Springfield as the new capital, setting the state government on the location it still occupies.",
                    "event_summary_en": "This was the decisive step in making Springfield the administrative center of Illinois and helps explain its modern network of state and Lincoln-related institutions.",
                    "event_significance_en": "While Chicago grew as an economic and transportation center, Springfield developed a distinct role as the seat of state government and historical institutions.",
                    "event_regional_context_en": "Early Illinois government operated from Kaskaskia and Vandalia before Springfield was chosen as the enduring administrative center.",
                    "event_background_en": "Springfield continues to serve as the state capital.",
                    "event_outcome_en": "Springfield continues to serve as the state capital.",
                    "event_data_context_en": "This is not a direct driver of the current statistical series; it is a historical anchor for understanding the region’s administrative geography.",
                    "event_title_es": "Illinois elige Springfield como capital estatal",
                    "event_text_es": "La legislatura eligió Springfield como nueva capital y fijó el centro del gobierno estatal en su ubicación actual.",
                    "event_summary_es": "Fue el paso decisivo para convertir Springfield en el centro administrativo de Illinois y ayuda a explicar su actual red de instituciones estatales y vinculadas a Lincoln.",
                    "event_significance_es": "Mientras Chicago creció como centro económico y de transporte, Springfield desarrolló un papel distinto como sede del gobierno estatal y de instituciones históricas.",
                    "event_regional_context_es": "El gobierno temprano de Illinois funcionó desde Kaskaskia y Vandalia antes de que Springfield fuera elegida como centro administrativo duradero.",
                    "event_background_es": "Springfield continúa siendo la capital del estado.",
                    "event_outcome_es": "Springfield continúa siendo la capital del estado.",
                    "event_data_context_es": "No es un impulsor directo de las series estadísticas actuales; es un punto de referencia histórico para comprender la geografía administrativa de la región.",
                    "event_related_places": [
                        "Springfield"
                    ],
                    "event_title": "Illinois chooses Springfield as the state capital",
                    "event_text": "The legislature selected Springfield as the new capital, setting the state government on the location it still occupies."
                }
            ]
        },
        {
            "year": "1867",
            "period": "1867",
            "label": "1867",
            "branches": [
                {
                    "kind": "context_event",
                    "topic": "education",
                    "source_name": "University of Illinois Urbana-Champaign",
                    "source_url": "https://illinois.edu/about/",
                    "event_type": "",
                    "policy_domain": "",
                    "issuer": "",
                    "announcement_date": "",
                    "effective_date": "",
                    "official_document_title": "",
                    "policy_status": "",
                    "event_title_ko": "University of Illinois 설립",
                    "event_text_ko": "주립 토지공여 대학으로 출발한 University of Illinois는 교육·연구·공공서비스를 결합하는 주 전체의 핵심 교육 기관으로 성장했다.",
                    "event_summary_ko": "Illinois의 대학·연구 네트워크를 설명하는 대표적 전환점이다. Urbana-Champaign은 Chicago와 Springfield와 다른 지식·연구 거점을 형성한다.",
                    "event_significance_ko": "산업·농업·기술 변화가 큰 Illinois에서 장기적인 인적자본과 연구 기반을 이해하는 데 중요한 기관이다.",
                    "event_regional_context_ko": "공공 고등교육과 연구를 지역 발전에 연결하는 토지공여 대학 체계 속에서 설립되었다.",
                    "event_background_ko": "오늘날 Urbana-Champaign은 Illinois의 대표적인 교육·연구 거점으로 기능한다.",
                    "event_outcome_ko": "오늘날 Urbana-Champaign은 Illinois의 대표적인 교육·연구 거점으로 기능한다.",
                    "event_data_context_ko": "가구·고용 지표는 훨씬 뒤 시기부터 시작하므로 대학 설립과 현재 통계 변화 사이에 직접 인과를 부여하지 않는다.",
                    "event_title_en": "Founding of the University of Illinois",
                    "event_text_en": "The University of Illinois began as a state-supported land-grant institution and developed into a major center for teaching, research, and public service.",
                    "event_summary_en": "It marks a major step in the development of Illinois’s higher-education and research network, giving Urbana-Champaign a distinct statewide role alongside Chicago and Springfield.",
                    "event_significance_en": "In a state shaped by industrial, agricultural, and technological change, the university is an important anchor for understanding long-run human capital and research capacity.",
                    "event_regional_context_en": "It was founded within the land-grant tradition that linked public higher education and research to regional development.",
                    "event_background_en": "Urbana-Champaign remains a leading education and research hub in Illinois.",
                    "event_outcome_en": "Urbana-Champaign remains a leading education and research hub in Illinois.",
                    "event_data_context_en": "Household and employment indicators begin much later, so the university’s founding should not be treated as a direct cause of current statistical movements.",
                    "event_title_es": "Fundación de la University of Illinois",
                    "event_text_es": "La University of Illinois comenzó como institución pública land-grant y se convirtió en un gran centro de enseñanza, investigación y servicio público.",
                    "event_summary_es": "Marca un paso importante en el desarrollo de la red de educación superior e investigación de Illinois y da a Urbana-Champaign un papel estatal distinto junto a Chicago y Springfield.",
                    "event_significance_es": "En un estado marcado por cambios industriales, agrícolas y tecnológicos, la universidad es un ancla importante para comprender el capital humano y la capacidad de investigación de largo plazo.",
                    "event_regional_context_es": "Se fundó dentro de la tradición land-grant que vinculó la educación superior pública y la investigación con el desarrollo regional.",
                    "event_background_es": "Urbana-Champaign sigue siendo un importante polo de educación e investigación en Illinois.",
                    "event_outcome_es": "Urbana-Champaign sigue siendo un importante polo de educación e investigación en Illinois.",
                    "event_data_context_es": "Los indicadores de hogares y empleo comienzan mucho después, por lo que la fundación de la universidad no debe tratarse como causa directa de los movimientos estadísticos actuales.",
                    "event_related_places": [
                        "University of Illinois Urbana-Champaign"
                    ],
                    "event_title": "Founding of the University of Illinois",
                    "event_text": "The University of Illinois began as a state-supported land-grant institution and developed into a major center for teaching, research, and public service."
                }
            ]
        },
        {
            "year": "1894",
            "period": "1894",
            "label": "1894",
            "branches": [
                {
                    "kind": "context_event",
                    "topic": "industry",
                    "source_name": "National Park Service",
                    "source_url": "https://home.nps.gov/pull/learn/historyculture/the-strike-of-1894.htm",
                    "event_type": "",
                    "policy_domain": "",
                    "issuer": "",
                    "announcement_date": "",
                    "effective_date": "",
                    "official_document_title": "",
                    "policy_status": "",
                    "event_title_ko": "Pullman 파업과 전국 철도 불매운동",
                    "event_text_ko": "Pullman 공장 노동자들의 파업이 전국 철도 불매운동으로 확대되며 Chicago가 미국 노동사와 산업관계의 핵심 무대가 되었다.",
                    "event_summary_ko": "Pullman은 계획 산업도시, 철도 제조, 노동조합, 연방 개입이 한 장소에서 교차한 사례다. 오늘날 역사공원이 이 복합적 유산을 해설한다.",
                    "event_significance_ko": "Illinois의 산업사를 단순한 생산 성장으로만 볼 수 없게 하는 사건으로, 노동과 도시 설계의 사회적 측면을 보여 준다.",
                    "event_regional_context_ko": "Pullman은 철도차량 생산을 중심으로 조성된 계획 산업 공동체였고 노동자 주거와 기업 통제가 밀접하게 결합되어 있었다.",
                    "event_background_ko": "파업과 불매운동은 미국 노동운동과 연방 노동정책 논의에 장기적인 역사적 기준점을 남겼다.",
                    "event_outcome_ko": "파업과 불매운동은 미국 노동운동과 연방 노동정책 논의에 장기적인 역사적 기준점을 남겼다.",
                    "event_data_context_ko": "현재의 고용·소득 지표는 다른 시대와 정의를 사용하므로 당시 사건과 현대 수치 사이에 직접적인 통계 연결을 만들지 않는다.",
                    "event_title_en": "The Pullman Strike and nationwide rail boycott",
                    "event_text_en": "A strike by Pullman workers expanded into a nationwide rail boycott, placing Chicago at the center of a major conflict in U.S. labor and industrial history.",
                    "event_summary_en": "Pullman brings together planned industrial urbanism, rail manufacturing, organized labor, and federal intervention in one place. The national historical park now interprets that layered legacy.",
                    "event_significance_en": "It shows why Illinois industrial history cannot be understood only as production growth; labor relations and urban design were also central.",
                    "event_regional_context_en": "Pullman was a planned industrial community centered on railcar production, where worker housing and company control were closely intertwined.",
                    "event_background_en": "The strike and boycott became a lasting reference point in U.S. labor history and debates over federal labor policy.",
                    "event_outcome_en": "The strike and boycott became a lasting reference point in U.S. labor history and debates over federal labor policy.",
                    "event_data_context_en": "Modern employment and income indicators use different periods and definitions, so they should not be directly linked statistically to the strike.",
                    "event_title_es": "La huelga de Pullman y el boicot ferroviario nacional",
                    "event_text_es": "Una huelga de los trabajadores de Pullman se amplió hasta convertirse en un boicot ferroviario nacional, situando a Chicago en el centro de un gran conflicto de la historia laboral e industrial de Estados Unidos.",
                    "event_summary_es": "Pullman reúne urbanismo industrial planificado, fabricación ferroviaria, movimiento obrero e intervención federal en un mismo lugar. El parque histórico nacional interpreta hoy ese legado complejo.",
                    "event_significance_es": "Muestra por qué la historia industrial de Illinois no puede entenderse solo como crecimiento de la producción; las relaciones laborales y el diseño urbano también fueron centrales.",
                    "event_regional_context_es": "Pullman fue una comunidad industrial planificada centrada en la producción de coches ferroviarios, donde la vivienda obrera y el control empresarial estaban estrechamente ligados.",
                    "event_background_es": "La huelga y el boicot se convirtieron en una referencia duradera de la historia laboral estadounidense y de los debates sobre política laboral federal.",
                    "event_outcome_es": "La huelga y el boicot se convirtieron en una referencia duradera de la historia laboral estadounidense y de los debates sobre política laboral federal.",
                    "event_data_context_es": "Los indicadores modernos de empleo e ingresos corresponden a otros periodos y definiciones, por lo que no deben vincularse estadísticamente de forma directa con la huelga.",
                    "event_related_places": [
                        "Pullman National Historical Park",
                        "Chicago"
                    ],
                    "event_title": "The Pullman Strike and nationwide rail boycott",
                    "event_text": "A strike by Pullman workers expanded into a nationwide rail boycott, placing Chicago at the center of a major conflict in U.S. labor and industrial history."
                }
            ]
        },
        {
            "year": "1900",
            "period": "1900",
            "label": "1900",
            "branches": [
                {
                    "kind": "context_event",
                    "topic": "infrastructure",
                    "source_name": "Metropolitan Water Reclamation District of Greater Chicago",
                    "source_url": "https://mwrd.org/what-we-do/history-protecting-our-water-environment",
                    "event_type": "",
                    "policy_domain": "",
                    "issuer": "",
                    "announcement_date": "",
                    "effective_date": "",
                    "official_document_title": "",
                    "policy_status": "",
                    "event_title_ko": "Chicago Sanitary and Ship Canal을 통한 강 흐름 전환",
                    "event_text_ko": "Chicago Sanitary and Ship Canal 건설로 Chicago River의 흐름이 전환되면서 식수 보호와 하수 관리, 수운을 함께 다루는 광역 기반시설 체계가 형성되었다.",
                    "event_summary_ko": "Illinois 북동부의 도시 성장에서 물 관리와 교통 인프라가 얼마나 중요한지를 보여 주는 대표적 공공사업이다.",
                    "event_significance_ko": "Chicago의 산업·인구 확대는 위생과 수질 문제를 키웠고, 광역 수로 체계가 도시 기능을 유지하는 핵심 기반시설로 자리 잡았다.",
                    "event_regional_context_ko": "운하는 이후에도 수질 관리와 상업 수운을 연결하는 광역 네트워크의 일부로 유지되었다.",
                    "event_data_context_ko": "현재 에너지 시계열이 시작되는 시기보다 앞선 사건으로, 현대 지표의 직접 원인이라기보다 Chicago권 기반시설의 장기 배경이다.",
                    "event_title_en": "Reversal of the Chicago River through the Sanitary and Ship Canal",
                    "event_text_en": "Construction of the Chicago Sanitary and Ship Canal reversed the Chicago River, creating a regional infrastructure system that connected drinking-water protection, wastewater management, and navigation.",
                    "event_summary_en": "It is a defining public-works milestone showing how water management and transportation infrastructure shaped northeastern Illinois.",
                    "event_significance_en": "Chicago’s industrial and population growth intensified sanitation and water-quality challenges, making regional waterways central to urban operations.",
                    "event_regional_context_en": "The canal remained part of a regional network linking water-quality management and commercial navigation.",
                    "event_data_context_en": "This predates the current energy series and is best read as long-run infrastructure context rather than a direct cause of modern indicator movements.",
                    "event_title_es": "Inversión del flujo del río Chicago mediante el Sanitary and Ship Canal",
                    "event_text_es": "La construcción del Chicago Sanitary and Ship Canal invirtió el río Chicago y creó un sistema regional de infraestructura que vinculó la protección del agua potable, la gestión de aguas residuales y la navegación.",
                    "event_summary_es": "Es un hito emblemático de obra pública que muestra cómo la gestión del agua y la infraestructura de transporte moldearon el noreste de Illinois.",
                    "event_significance_es": "El crecimiento industrial y demográfico de Chicago intensificó los problemas de saneamiento y calidad del agua, convirtiendo las vías fluviales regionales en infraestructura esencial para la ciudad.",
                    "event_regional_context_es": "El canal siguió formando parte de una red regional que conecta la gestión de la calidad del agua con la navegación comercial.",
                    "event_data_context_es": "Este acontecimiento es anterior a las series energéticas actuales y debe leerse como contexto de infraestructura de largo plazo, no como causa directa de los movimientos de los indicadores modernos.",
                    "event_related_places": [
                        "Chicago"
                    ],
                    "event_title": "Reversal of the Chicago River through the Sanitary and Ship Canal",
                    "event_text": "Construction of the Chicago Sanitary and Ship Canal reversed the Chicago River, creating a regional infrastructure system that connected drinking-water protection, wastewater management, and navigation."
                }
            ]
        },
        {
            "year": "1955",
            "period": "1955",
            "label": "1955",
            "branches": [
                {
                    "kind": "context_event",
                    "topic": "airport",
                    "source_name": "Chicago Department of Aviation",
                    "source_url": "https://www.flychicago.com/business/CDA/Pages/OHare.aspx",
                    "event_type": "",
                    "policy_domain": "",
                    "issuer": "",
                    "announcement_date": "",
                    "effective_date": "",
                    "official_document_title": "",
                    "policy_status": "",
                    "event_title_ko": "O'Hare의 상업 여객 운항 개시",
                    "event_text_ko": "O'Hare International Airport가 상업 여객 운항을 시작하며 Chicago의 항공 네트워크가 새로운 성장 단계로 들어갔다.",
                    "event_summary_ko": "공항은 Illinois의 국내외 접근성과 기업·관광·물류 연결성을 설명하는 핵심 교통 거점이 되었다.",
                    "event_significance_ko": "Chicago의 철도·도로 중심성에 항공 연결성이 더해지며 주의 교통 구조가 다층화되는 계기가 되었다.",
                    "event_regional_context_ko": "기존 Orchard Field 부지를 기반으로 공항 기능이 확장되며 Chicago의 주요 항공 관문으로 발전했다.",
                    "event_background_ko": "O’Hare는 이후 Illinois의 대표적인 광역 교통 거점 중 하나로 자리 잡았다.",
                    "event_outcome_ko": "O’Hare는 이후 Illinois의 대표적인 광역 교통 거점 중 하나로 자리 잡았다.",
                    "event_data_context_ko": "현재의 에너지·가계 통계와 공항 개항을 직접 인과로 연결하지 않고, 교통 접근성과 도시 기능을 설명하는 역사적 맥락으로 사용한다.",
                    "event_title_en": "O'Hare opens to commercial passenger traffic",
                    "event_text_en": "O'Hare International Airport opened to commercial passenger traffic, beginning a new phase in Chicago's aviation network.",
                    "event_summary_en": "The airport became a central transportation anchor for Illinois, linking business, tourism, freight, and national and international travel.",
                    "event_significance_en": "It added global aviation to Chicago’s established rail and road connections, deepening the state’s multimodal transportation structure.",
                    "event_regional_context_en": "The airport expanded from the former Orchard Field site and developed into Chicago’s primary aviation gateway.",
                    "event_background_en": "O’Hare became one of Illinois’s defining regional transportation hubs.",
                    "event_outcome_en": "O’Hare became one of Illinois’s defining regional transportation hubs.",
                    "event_data_context_en": "The airport opening is used as transportation context, not as a direct causal explanation for modern energy or household indicators.",
                    "event_title_es": "O'Hare inicia el tráfico comercial de pasajeros",
                    "event_text_es": "O'Hare International Airport inició el tráfico comercial de pasajeros y abrió una nueva etapa para la red aérea de Chicago.",
                    "event_summary_es": "El aeropuerto se convirtió en un nodo de transporte central para Illinois, conectando negocios, turismo, carga y viajes nacionales e internacionales.",
                    "event_significance_es": "Añadió la aviación global a las conexiones ferroviarias y viales ya consolidadas de Chicago y profundizó la estructura multimodal del estado.",
                    "event_regional_context_es": "El aeropuerto se expandió desde el antiguo emplazamiento de Orchard Field y se convirtió en la principal puerta aérea de Chicago.",
                    "event_background_es": "O’Hare se consolidó como uno de los principales nodos regionales de transporte de Illinois.",
                    "event_outcome_es": "O’Hare se consolidó como uno de los principales nodos regionales de transporte de Illinois.",
                    "event_data_context_es": "La apertura del aeropuerto se utiliza como contexto de transporte, no como explicación causal directa de los indicadores modernos de energía o de los hogares.",
                    "event_related_places": [
                        "O'Hare International Airport",
                        "Chicago"
                    ],
                    "event_title": "O'Hare opens to commercial passenger traffic",
                    "event_text": "O'Hare International Airport opened to commercial passenger traffic, beginning a new phase in Chicago's aviation network."
                }
            ]
        },
        {
            "period": "2001",
            "year": "2001",
            "month": "",
            "label": "2001",
            "branches": [
                {
                    "kind": "statistic_change",
                    "topic": "energy",
                    "metric_key": "EIA_SEDS:TEPRB",
                    "metric_label": "Total primary energy production",
                    "value": 1907736,
                    "previous_value": 1888016,
                    "delta": 19720,
                    "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": 3904632,
                    "previous_value": 4028341,
                    "delta": -123709,
                    "unit": "Billion Btu",
                    "source_url": "https://api.eia.gov/v2/seds/data/",
                    "provider": "US_EIA"
                }
            ]
        },
        {
            "period": "2002",
            "year": "2002",
            "month": "",
            "label": "2002",
            "branches": [
                {
                    "kind": "statistic_change",
                    "topic": "energy",
                    "metric_key": "EIA_SEDS:TEPRB",
                    "metric_label": "Total primary energy production",
                    "value": 1911612,
                    "previous_value": 1907736,
                    "delta": 3876,
                    "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": 3919273,
                    "previous_value": 3904632,
                    "delta": 14641,
                    "unit": "Billion Btu",
                    "source_url": "https://api.eia.gov/v2/seds/data/",
                    "provider": "US_EIA"
                }
            ]
        },
        {
            "period": "2003",
            "year": "2003",
            "month": "",
            "label": "2003",
            "branches": [
                {
                    "kind": "statistic_change",
                    "topic": "energy",
                    "metric_key": "EIA_SEDS:TEPRB",
                    "metric_label": "Total primary energy production",
                    "value": 1934954,
                    "previous_value": 1911612,
                    "delta": 23342,
                    "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": 3944694,
                    "previous_value": 3919273,
                    "delta": 25421,
                    "unit": "Billion Btu",
                    "source_url": "https://api.eia.gov/v2/seds/data/",
                    "provider": "US_EIA"
                }
            ]
        },
        {
            "period": "2004",
            "year": "2004",
            "month": "",
            "label": "2004",
            "branches": [
                {
                    "kind": "statistic_change",
                    "topic": "energy",
                    "metric_key": "EIA_SEDS:TEPRB",
                    "metric_label": "Total primary energy production",
                    "value": 1899420,
                    "previous_value": 1934954,
                    "delta": -35534,
                    "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": 3992115,
                    "previous_value": 3944694,
                    "delta": 47421,
                    "unit": "Billion Btu",
                    "source_url": "https://api.eia.gov/v2/seds/data/",
                    "provider": "US_EIA"
                }
            ]
        },
        {
            "period": "2005",
            "year": "2005",
            "month": "",
            "label": "2005",
            "branches": [
                {
                    "kind": "statistic_change",
                    "topic": "energy",
                    "metric_key": "EIA_SEDS:TEPRB",
                    "metric_label": "Total primary energy production",
                    "value": 1896706,
                    "previous_value": 1899420,
                    "delta": -2714,
                    "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": 4138872,
                    "previous_value": 3992115,
                    "delta": 146757,
                    "unit": "Billion Btu",
                    "source_url": "https://api.eia.gov/v2/seds/data/",
                    "provider": "US_EIA"
                },
                {
                    "kind": "context_event",
                    "topic": "culture",
                    "source_name": "Abraham Lincoln Presidential Library and Museum",
                    "source_url": "https://presidentlincoln.illinois.gov/News/1/Presidential-library-says-welcome-back-to-visitors-Wednesday/news-detail/",
                    "event_type": "",
                    "policy_domain": "",
                    "issuer": "",
                    "announcement_date": "",
                    "effective_date": "",
                    "official_document_title": "",
                    "policy_status": "",
                    "event_title_ko": "Abraham Lincoln Presidential Museum 개관",
                    "event_text_ko": "Springfield의 Abraham Lincoln Presidential Museum이 문을 열며 Lincoln 관련 기록·전시·교육 기능이 도심의 역사 기관 네트워크에 결합되었다.",
                    "event_summary_ko": "Springfield의 행정도시 정체성과 역사관광 기능을 함께 보여 주는 대표적인 문화 인프라다.",
                    "event_significance_ko": "주 정부 중심지인 Springfield에는 Lincoln의 정치·법률 활동과 관련된 여러 역사 장소가 집중되어 있다.",
                    "event_regional_context_ko": "박물관은 인근의 다른 Lincoln 관련 장소와 함께 Springfield 도심의 역사 탐방 거점을 강화했다.",
                    "event_data_context_ko": "같은 시기의 에너지 지표 변화와 문화시설 개관 사이에는 직접 인과를 설정하지 않으며, 지역 기능을 설명하는 문화 맥락으로 본다.",
                    "event_title_en": "Opening of the Abraham Lincoln Presidential Museum",
                    "event_text_en": "The Abraham Lincoln Presidential Museum opened in Springfield, adding a major exhibition and education institution to the city’s network of Lincoln-related sites.",
                    "event_summary_en": "It is a major cultural institution that connects Springfield’s role as the state capital with its historical-tourism identity.",
                    "event_significance_en": "Springfield combines state-government functions with a dense network of places associated with Lincoln’s political and legal life.",
                    "event_regional_context_en": "The museum strengthened downtown Springfield as a base for exploring a broader network of Lincoln-related historic places.",
                    "event_data_context_en": "No direct causal link is made between contemporaneous energy changes and the museum opening; it is cultural context for the region’s functions.",
                    "event_title_es": "Apertura del Abraham Lincoln Presidential Museum",
                    "event_text_es": "El Abraham Lincoln Presidential Museum abrió en Springfield y añadió una gran institución de exposición y educación a la red de lugares vinculados con Lincoln en la ciudad.",
                    "event_summary_es": "Es una institución cultural importante que conecta el papel de Springfield como capital estatal con su identidad de turismo histórico.",
                    "event_significance_es": "Springfield combina funciones de gobierno estatal con una densa red de lugares asociados a la vida política y jurídica de Lincoln.",
                    "event_regional_context_es": "El museo reforzó el centro de Springfield como base para explorar una red más amplia de lugares históricos vinculados con Lincoln.",
                    "event_data_context_es": "No se establece un vínculo causal directo entre los cambios energéticos del mismo periodo y la apertura del museo; se utiliza como contexto cultural de las funciones regionales.",
                    "event_related_places": [
                        "Abraham Lincoln Presidential Library and Museum",
                        "Springfield"
                    ],
                    "event_title": "Opening of the Abraham Lincoln Presidential Museum",
                    "event_text": "The Abraham Lincoln Presidential Museum opened in Springfield, adding a major exhibition and education institution to the city’s network of Lincoln-related sites."
                }
            ]
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                    "metric_key": "EIA_SEDS:TEPRB",
                    "metric_label": "Total primary energy production",
                    "value": 1917259,
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                },
                {
                    "kind": "statistic_change",
                    "topic": "energy",
                    "metric_key": "EIA_SEDS:TETCB",
                    "metric_label": "Total energy consumption",
                    "value": 3988635,
                    "previous_value": 4138872,
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                    "unit": "Billion Btu",
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                    "value": 1973324,
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                {
                    "kind": "statistic_change",
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                    "metric_key": "EIA_SEDS:TETCB",
                    "metric_label": "Total energy consumption",
                    "value": 4075892,
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                {
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                    "metric_label": "Total energy consumption",
                    "value": 4070403,
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                {
                    "kind": "statistic_change",
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                    "value": 3841146,
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                    "value": 2096733,
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                },
                {
                    "kind": "statistic_change",
                    "topic": "energy",
                    "metric_key": "EIA_SEDS:TETCB",
                    "metric_label": "Total energy consumption",
                    "value": 3955722,
                    "previous_value": 3841146,
                    "delta": 114576,
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                    "source_url": "https://api.eia.gov/v2/seds/data/",
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                }
            ]
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                    "value": 2196966,
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                },
                {
                    "kind": "statistic_change",
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                    "value": 3932828,
                    "previous_value": 3955722,
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                {
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                    "value": 3802475,
                    "previous_value": 3932828,
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                    "source_url": "https://api.eia.gov/v2/seds/data/",
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                },
                {
                    "kind": "statistic_change",
                    "topic": "population",
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                    "value": 12823860,
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                {
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                {
                    "kind": "statistic_change",
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                    "topic": "employment",
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            "period": "2013",
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                    "value": 3960891,
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                {
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                {
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                {
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                },
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                {
                    "kind": "context_event",
                    "topic": "conservation",
                    "source_name": "National Park Service",
                    "source_url": "https://www.nps.gov/pull/learn/historyculture/index.htm",
                    "event_type": "",
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                    "event_title_ko": "Pullman의 National Monument 지정",
                    "event_text_ko": "Pullman의 산업·노동·도시계획 유산이 연방 차원의 보존 대상으로 지정되면서 Chicago 안의 산업사 공간이 국가 역사 해설 체계에 편입되었다.",
                    "event_summary_ko": "단순한 관광 명소가 아니라 산업도시와 노동운동의 역사를 현장에서 읽을 수 있는 공공 역사 거점으로서 의미가 커졌다.",
                    "event_significance_ko": "Chicago의 현대 서비스·교통 기능과 함께 도시의 제조업·노동 유산도 Illinois의 장기 변화를 이해하는 중요한 층을 이룬다.",
                    "event_regional_context_ko": "Pullman은 계획 산업 공동체와 철도차량 제조, 노동운동이 중첩된 역사 지구다.",
                    "event_background_ko": "이후 National Historical Park로 이어지는 보존·해설 체계의 기반이 강화되었다.",
                    "event_outcome_ko": "이후 National Historical Park로 이어지는 보존·해설 체계의 기반이 강화되었다.",
                    "event_data_context_ko": "당시 주택 가치와 실업률 등 여러 지표가 서로 다른 방향으로 움직였지만, 보존 지정과 통계 변화 사이에 인과를 부여하지 않는다.",
                    "event_title_en": "Pullman designated a National Monument",
                    "event_text_en": "Pullman’s industrial, labor, and urban-planning heritage received federal protection, bringing a major Chicago industrial-history landscape into the national preservation system.",
                    "event_summary_en": "Its significance goes beyond tourism: it became a public-history anchor where visitors can interpret industrial urbanism and labor history in place.",
                    "event_significance_en": "Alongside Chicago’s modern service and transportation functions, its manufacturing and labor heritage remains an important layer of Illinois history.",
                    "event_regional_context_en": "Pullman is a historic district where a planned industrial community, railcar manufacturing, and labor history overlap.",
                    "event_background_en": "The designation strengthened the preservation and interpretation framework that later continued as a National Historical Park.",
                    "event_outcome_en": "The designation strengthened the preservation and interpretation framework that later continued as a National Historical Park.",
                    "event_data_context_en": "Housing values, unemployment, and other indicators were moving in different directions at the time, but the designation is not treated as a cause of those statistical changes.",
                    "event_title_es": "Pullman es designado Monumento Nacional",
                    "event_text_es": "El patrimonio industrial, laboral y urbanístico de Pullman recibió protección federal e incorporó un paisaje clave de la historia industrial de Chicago al sistema nacional de conservación.",
                    "event_summary_es": "Su importancia va más allá del turismo: se convirtió en un punto de historia pública donde se puede interpretar in situ el urbanismo industrial y la historia laboral.",
                    "event_significance_es": "Junto con las funciones modernas de servicios y transporte de Chicago, su patrimonio manufacturero y laboral sigue siendo una capa importante de la historia de Illinois.",
                    "event_regional_context_es": "Pullman es un distrito histórico donde se superponen una comunidad industrial planificada, la fabricación ferroviaria y la historia laboral.",
                    "event_background_es": "La designación reforzó el marco de conservación e interpretación que posteriormente continuó como National Historical Park.",
                    "event_outcome_es": "La designación reforzó el marco de conservación e interpretación que posteriormente continuó como National Historical Park.",
                    "event_data_context_es": "Los valores de vivienda, el desempleo y otros indicadores se movían en direcciones distintas en ese momento, pero la designación no se trata como causa de esos cambios estadísticos.",
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                    "value": 12694798,
                    "previous_value": 12692653,
                    "delta": 2145,
                    "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": 83390,
                    "previous_value": 81702,
                    "delta": 1688,
                    "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": 263300,
                    "previous_value": 250500,
                    "delta": 12800,
                    "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": 5.838276859726518,
                    "previous_value": 5.796747319574941,
                    "delta": 0.04152954015157739,
                    "unit": "percent",
                    "source_url": "https://api.census.gov/data/2024/acs/acs5",
                    "provider": "US_CENSUS_DATA_API"
                }
            ]
        }
    ],
    "places": [
        {
            "category": "major_city",
            "name": "Chicago",
            "source_name": "City of Chicago",
            "source_url": "https://chicago.gov/",
            "summary_ko": "Illinois의 최대 도시이자 주의 핵심 경제·교통·문화 거점이다. 철도, 고속도로, 항공, 수로가 겹치는 광역 네트워크의 중심으로 지역 전체의 기능을 이해하는 데 중요하다.",
            "summary_en": "Illinois’s largest city is the state’s principal economic, transportation, and cultural hub. Its overlapping rail, highway, aviation, and waterway networks make it central to understanding statewide connections.",
            "summary_es": "La mayor ciudad de Illinois es el principal centro económico, de transporte y cultural del estado. La superposición de redes ferroviarias, viales, aéreas y fluviales la convierte en un punto clave para entender las conexiones estatales.",
            "summary": "Illinois’s largest city is the state’s principal economic, transportation, and cultural hub. Its overlapping rail, highway, aviation, and waterway networks make it central to understanding statewide connections."
        },
        {
            "category": "major_city",
            "name": "Springfield",
            "source_name": "City of Springfield",
            "source_url": "https://www.springfield.il.us/CommunityHome.aspx",
            "summary_ko": "Illinois의 주도이자 주 정부 기관이 집중된 행정 중심이다. Abraham Lincoln 관련 역사 장소와 공공기관이 함께 있어 정치·행정·역사관광을 연결한다.",
            "summary_en": "Springfield is the Illinois state capital and the center of state government. Its concentration of Abraham Lincoln sites and public institutions links administration, political history, and heritage tourism.",
            "summary_es": "Springfield es la capital de Illinois y el centro del gobierno estatal. La concentración de lugares vinculados con Abraham Lincoln e instituciones públicas conecta administración, historia política y turismo patrimonial.",
            "summary": "Springfield is the Illinois state capital and the center of state government. Its concentration of Abraham Lincoln sites and public institutions links administration, political history, and heritage tourism."
        },
        {
            "category": "nature",
            "name": "Starved Rock State Park",
            "source_name": "Illinois Department of Natural Resources",
            "source_url": "https://dnr.illinois.gov/parks/about/park.starvedrock.html",
            "summary_ko": "Illinois River 계곡의 사암 절벽과 협곡, 숲 경관으로 잘 알려진 주립공원이다. 도시권 밖의 자연 지형과 야외활동을 보여 주는 대표적인 지역 자산이다.",
            "summary_en": "A state park along the Illinois River known for sandstone bluffs, canyons, forest scenery, and outdoor recreation. It represents a major natural landscape beyond the state’s urban centers.",
            "summary_es": "Parque estatal junto al río Illinois conocido por sus acantilados de arenisca, cañones, bosques y actividades al aire libre. Representa un paisaje natural destacado fuera de los grandes centros urbanos.",
            "summary": "A state park along the Illinois River known for sandstone bluffs, canyons, forest scenery, and outdoor recreation. It represents a major natural landscape beyond the state’s urban centers."
        },
        {
            "category": "landmark",
            "name": "Pullman National Historical Park",
            "source_name": "National Park Service",
            "source_url": "https://www.nps.gov/pull/learn/historyculture/index.htm",
            "summary_ko": "Chicago 남부의 계획 산업 공동체와 철도차량 제조, 노동운동, 도시설계의 역사를 한 장소에서 해설하는 국가 역사공원이다.",
            "summary_en": "A national historical park on Chicago’s South Side interpreting a planned industrial community, railcar manufacturing, labor history, and urban design in one landscape.",
            "summary_es": "Parque histórico nacional en el South Side de Chicago que interpreta en un mismo paisaje una comunidad industrial planificada, la fabricación ferroviaria, la historia laboral y el diseño urbano.",
            "summary": "A national historical park on Chicago’s South Side interpreting a planned industrial community, railcar manufacturing, labor history, and urban design in one landscape."
        },
        {
            "category": "landmark",
            "name": "Cahokia Mounds State Historic Site",
            "source_name": "Cahokia Mounds State Historic Site / Illinois Department of Natural Resources",
            "source_url": "https://cahokiamounds.org/about/",
            "summary_ko": "Mississippian 문화의 대규모 선주민 도시 유적을 보존하는 Illinois의 대표 고고학·역사 장소다. 주의 역사가 근대 도시화보다 훨씬 이전부터 이어졌음을 보여 준다.",
            "summary_en": "A major archaeological and historic site preserving the remains of a large Mississippian Indigenous urban center. It places Illinois history in a much deeper time frame than modern urban development.",
            "summary_es": "Importante sitio arqueológico e histórico que conserva restos de un gran centro urbano indígena de la cultura misisipiana. Sitúa la historia de Illinois en un marco temporal mucho más profundo que la urbanización moderna.",
            "summary": "A major archaeological and historic site preserving the remains of a large Mississippian Indigenous urban center. It places Illinois history in a much deeper time frame than modern urban development."
        },
        {
            "category": "airport",
            "name": "O'Hare International Airport",
            "source_name": "Chicago Department of Aviation",
            "source_url": "https://www.flychicago.com/business/CDA/Pages/OHare.aspx",
            "summary_ko": "Chicago의 주요 국제공항으로 Illinois를 미국 국내선과 국제 항공망에 연결하는 핵심 교통 거점이다. 비즈니스·관광·화물 이동을 함께 뒷받침한다.",
            "summary_en": "Chicago’s primary international airport is a major transportation gateway connecting Illinois to domestic and global air networks, supporting business, tourism, and freight movement.",
            "summary_es": "El principal aeropuerto internacional de Chicago es una gran puerta de transporte que conecta Illinois con redes aéreas nacionales y mundiales y respalda viajes de negocios, turismo y carga.",
            "summary": "Chicago’s primary international airport is a major transportation gateway connecting Illinois to domestic and global air networks, supporting business, tourism, and freight movement."
        },
        {
            "category": "education",
            "name": "University of Illinois Urbana-Champaign",
            "source_name": "University of Illinois Urbana-Champaign",
            "source_url": "https://illinois.edu/about/",
            "summary_ko": "교육·연구·공공서비스를 핵심 임무로 하는 Illinois의 대표 공립 연구대학이다. Urbana-Champaign을 주의 중요한 지식·연구 거점으로 만든다.",
            "summary_en": "A leading public research university in Illinois with missions in teaching, research, and public service, making Urbana-Champaign a major statewide knowledge and research hub.",
            "summary_es": "Una destacada universidad pública de investigación de Illinois con misiones de enseñanza, investigación y servicio público, que convierte a Urbana-Champaign en un importante polo estatal de conocimiento e investigación.",
            "summary": "A leading public research university in Illinois with missions in teaching, research, and public service, making Urbana-Champaign a major statewide knowledge and research hub."
        },
        {
            "category": "culture",
            "name": "Abraham Lincoln Presidential Library and Museum",
            "source_name": "Abraham Lincoln Presidential Library and Museum",
            "source_url": "https://presidentlincoln.illinois.gov/",
            "summary_ko": "Springfield의 대표 역사·문화 기관으로 Abraham Lincoln 관련 기록, 유물, 전시와 교육 프로그램을 중심으로 운영된다. 주도 방문 동선에서 행정사와 미국사를 연결하는 거점이다.",
            "summary_en": "A major historical and cultural institution in Springfield centered on Abraham Lincoln documents, artifacts, exhibitions, and education. It links state-capital history with a broader national story.",
            "summary_es": "Importante institución histórica y cultural de Springfield centrada en documentos, objetos, exposiciones y educación sobre Abraham Lincoln. Conecta la historia de la capital estatal con una narrativa nacional más amplia.",
            "summary": "A major historical and cultural institution in Springfield centered on Abraham Lincoln documents, artifacts, exhibitions, and education. It links state-capital history with a broader national story."
        }
    ],
    "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": 2172437,
                    "unit": "Billion Btu",
                    "first_period": "2000",
                    "first_value": 1888016,
                    "change": 284421,
                    "change_pct": 15.064543944542844
                },
                {
                    "metric": "Total energy consumption",
                    "topic": "energy",
                    "latest_period": "2024",
                    "latest_value": 3434701,
                    "unit": "Billion Btu",
                    "first_period": "2000",
                    "first_value": 4028341,
                    "change": -593640,
                    "change_pct": -14.736587592758408
                },
                {
                    "metric": "Population",
                    "topic": "population",
                    "latest_period": "2024",
                    "latest_value": 12694798,
                    "unit": "persons",
                    "first_period": "2011",
                    "first_value": 12790182,
                    "change": -95384,
                    "change_pct": -0.7457595208574828
                },
                {
                    "metric": "Median household income",
                    "topic": "income",
                    "latest_period": "2024",
                    "latest_value": 83390,
                    "unit": "US dollars",
                    "first_period": "2011",
                    "first_value": 56576,
                    "change": 26814,
                    "change_pct": 47.394654977375566
                },
                {
                    "metric": "Median home value",
                    "topic": "housing",
                    "latest_period": "2024",
                    "latest_value": 263300,
                    "unit": "US dollars",
                    "first_period": "2011",
                    "first_value": 198500,
                    "change": 64800,
                    "change_pct": 32.6448362720403
                },
                {
                    "metric": "Unemployment rate",
                    "topic": "employment",
                    "latest_period": "2024",
                    "latest_value": 5.838276859726518,
                    "unit": "percent",
                    "first_period": "2011",
                    "first_value": 9.34114133087567,
                    "change": -3.5028644711491523,
                    "change_pct": -37.499319912557
                }
            ]
        },
        {
            "table_id": "history",
            "title": "Historical observations",
            "columns": [
                "period",
                "values"
            ],
            "rows": [
                {
                    "period": "2024",
                    "values": [
                        {
                            "metric": "Total primary energy production",
                            "value": 2172437,
                            "unit": "Billion Btu"
                        },
                        {
                            "metric": "Total energy consumption",
                            "value": 3434701,
                            "unit": "Billion Btu"
                        },
                        {
                            "metric": "Population",
                            "value": 12694798,
                            "unit": "persons"
                        },
                        {
                            "metric": "Median household income",
                            "value": 83390,
                            "unit": "US dollars"
                        },
                        {
                            "metric": "Median home value",
                            "value": 263300,
                            "unit": "US dollars"
                        },
                        {
                            "metric": "Unemployment rate",
                            "value": 5.838276859726518,
                            "unit": "percent"
                        }
                    ]
                },
                {
                    "period": "2023",
                    "values": [
                        {
                            "metric": "Total primary energy production",
                            "value": 2202042,
                            "unit": "Billion Btu"
                        },
                        {
                            "metric": "Total energy consumption",
                            "value": 3479416,
                            "unit": "Billion Btu"
                        },
                        {
                            "metric": "Population",
                            "value": 12692653,
                            "unit": "persons"
                        },
                        {
                            "metric": "Median household income",
                            "value": 81702,
                            "unit": "US dollars"
                        },
                        {
                            "metric": "Median home value",
                            "value": 250500,
                            "unit": "US dollars"
                        },
                        {
                            "metric": "Unemployment rate",
                            "value": 5.796747319574941,
                            "unit": "percent"
                        }
                    ]
                },
                {
                    "period": "2022",
                    "values": [
                        {
                            "metric": "Total primary energy production",
                            "value": 2218638,
                            "unit": "Billion Btu"
                        },
                        {
                            "metric": "Total energy consumption",
                            "value": 3668788,
                            "unit": "Billion Btu"
                        },
                        {
                            "metric": "Population",
                            "value": 12757634,
                            "unit": "persons"
                        },
                        {
                            "metric": "Median household income",
                            "value": 78433,
                            "unit": "US dollars"
                        },
                        {
                            "metric": "Median home value",
                            "value": 239100,
                            "unit": "US dollars"
                        },
                        {
                            "metric": "Unemployment rate",
                            "value": 5.955906641825619,
                            "unit": "percent"
                        }
                    ]
                },
                {
                    "period": "2021",
                    "values": [
                        {
                            "metric": "Total primary energy production",
                            "value": 2164684,
                            "unit": "Billion Btu"
                        },
                        {
                            "metric": "Total energy consumption",
                            "value": 3627711,
                            "unit": "Billion Btu"
                        },
                        {
                            "metric": "Population",
                            "value": 12821813,
                            "unit": "persons"
                        },
                        {
                            "metric": "Median household income",
                            "value": 72563,
                            "unit": "US dollars"
                        },
                        {
                            "metric": "Median home value",
                            "value": 212600,
                            "unit": "US dollars"
                        },
                        {
                            "metric": "Unemployment rate",
                            "value": 6.17722478409527,
                            "unit": "percent"
                        }
                    ]
                },
                {
                    "period": "2020",
                    "values": [
                        {
                            "metric": "Total primary energy production",
                            "value": 2074443,
                            "unit": "Billion Btu"
                        },
                        {
                            "metric": "Total energy consumption",
                            "value": 3544398,
                            "unit": "Billion Btu"
                        },
                        {
                            "metric": "Population",
                            "value": 12716164,
                            "unit": "persons"
                        },
                        {
                            "metric": "Median household income",
                            "value": 68428,
                            "unit": "US dollars"
                        },
                        {
                            "metric": "Median home value",
                            "value": 202100,
                            "unit": "US dollars"
                        },
                        {
                            "metric": "Unemployment rate",
                            "value": 5.958204718800669,
                            "unit": "percent"
                        }
                    ]
                },
                {
                    "period": "2019",
                    "values": [
                        {
                            "metric": "Total primary energy production",
                            "value": 2385846,
                            "unit": "Billion Btu"
                        },
                        {
                            "metric": "Total energy consumption",
                            "value": 3883106,
                            "unit": "Billion Btu"
                        },
                        {
                            "metric": "Population",
                            "value": 12770631,
                            "unit": "persons"
                        },
                        {
                            "metric": "Median household income",
                            "value": 65886,
                            "unit": "US dollars"
                        },
                        {
                            "metric": "Median home value",
                            "value": 194500,
                            "unit": "US dollars"
                        },
                        {
                            "metric": "Unemployment rate",
                            "value": 5.943279129525028,
                            "unit": "percent"
                        }
                    ]
                },
                {
                    "period": "2018",
                    "values": [
                        {
                            "metric": "Total primary energy production",
                            "value": 2462419,
                            "unit": "Billion Btu"
                        },
                        {
                            "metric": "Total energy consumption",
                            "value": 3957944,
                            "unit": "Billion Btu"
                        },
                        {
                            "metric": "Population",
                            "value": 12821497,
                            "unit": "persons"
                        },
                        {
                            "metric": "Median household income",
                            "value": 63575,
                            "unit": "US dollars"
                        },
                        {
                            "metric": "Median home value",
                            "value": 187200,
                            "unit": "US dollars"
                        },
                        {
                            "metric": "Unemployment rate",
                            "value": 6.560591964434589,
                            "unit": "percent"
                        }
                    ]
                },
                {
                    "period": "2017",
                    "values": [
                        {
                            "metric": "Total primary energy production",
                            "value": 2451957,
                            "unit": "Billion Btu"
                        },
                        {
                            "metric": "Total energy consumption",
                            "value": 3830008,
                            "unit": "Billion Btu"
                        },
                        {
                            "metric": "Population",
                            "value": 12854526,
                            "unit": "persons"
                        },
                        {
                            "metric": "Median household income",
                            "value": 61229,
                            "unit": "US dollars"
                        },
                        {
                            "metric": "Median home value",
                            "value": 179700,
                            "unit": "US dollars"
                        },
                        {
                            "metric": "Unemployment rate",
                            "value": 7.362696301478069,
                            "unit": "percent"
                        }
                    ]
                },
                {
                    "period": "2016",
                    "values": [
                        {
                            "metric": "Total primary energy production",
                            "value": 2371898,
                            "unit": "Billion Btu"
                        },
                        {
                            "metric": "Total energy consumption",
                            "value": 3873296,
                            "unit": "Billion Btu"
                        },
                        {
                            "metric": "Population",
                            "value": 12851684,
                            "unit": "persons"
                        },
                        {
                            "metric": "Median household income",
                            "value": 59196,
                            "unit": "US dollars"
                        },
                        {
                            "metric": "Median home value",
                            "value": 174800,
                            "unit": "US dollars"
                        },
                        {
                            "metric": "Unemployment rate",
                            "value": 8.168486992638654,
                            "unit": "percent"
                        }
                    ]
                },
                {
                    "period": "2015",
                    "values": [
                        {
                            "metric": "Total primary energy production",
                            "value": 2617505,
                            "unit": "Billion Btu"
                        },
                        {
                            "metric": "Total energy consumption",
                            "value": 3869319,
                            "unit": "Billion Btu"
                        },
                        {
                            "metric": "Population",
                            "value": 12873761,
                            "unit": "persons"
                        },
                        {
                            "metric": "Median household income",
                            "value": 57574,
                            "unit": "US dollars"
                        },
                        {
                            "metric": "Median home value",
                            "value": 173800,
                            "unit": "US dollars"
                        },
                        {
                            "metric": "Unemployment rate",
                            "value": 9.089461550572075,
                            "unit": "percent"
                        }
                    ]
                },
                {
                    "period": "2014",
                    "values": [
                        {
                            "metric": "Total primary energy production",
                            "value": 2680437,
                            "unit": "Billion Btu"
                        },
                        {
                            "metric": "Total energy consumption",
                            "value": 4036853,
                            "unit": "Billion Btu"
                        },
                        {
                            "metric": "Population",
                            "value": 12868747,
                            "unit": "persons"
                        },
                        {
                            "metric": "Median household income",
                            "value": 57166,
                            "unit": "US dollars"
                        },
                        {
                            "metric": "Median home value",
                            "value": 175700,
                            "unit": "US dollars"
                        },
                        {
                            "metric": "Unemployment rate",
                            "value": 9.991073762771592,
                            "unit": "percent"
                        }
                    ]
                },
                {
                    "period": "2013",
                    "values": [
                        {
                            "metric": "Total primary energy production",
                            "value": 2518395,
                            "unit": "Billion Btu"
                        },
                        {
                            "metric": "Total energy consumption",
                            "value": 3960891,
                            "unit": "Billion Btu"
                        },
                        {
                            "metric": "Population",
                            "value": 12848554,
                            "unit": "persons"
                        },
                        {
                            "metric": "Median household income",
                            "value": 56797,
                            "unit": "US dollars"
                        },
                        {
                            "metric": "Median home value",
                            "value": 182300,
                            "unit": "US dollars"
                        },
                        {
                            "metric": "Unemployment rate",
                            "value": 10.458616114559089,
                            "unit": "percent"
                        }
                    ]
                },
                {
                    "period": "2012",
                    "values": [
                        {
                            "metric": "Total primary energy production",
                            "value": 2439966,
                            "unit": "Billion Btu"
                        },
                        {
                            "metric": "Total energy consumption",
                            "value": 3802475,
                            "unit": "Billion Btu"
                        },
                        {
                            "metric": "Population",
                            "value": 12823860,
                            "unit": "persons"
                        },
                        {
                            "metric": "Median household income",
                            "value": 56853,
                            "unit": "US dollars"
                        },
                        {
                            "metric": "Median home value",
                            "value": 190800,
                            "unit": "US dollars"
                        },
                        {
                            "metric": "Unemployment rate",
                            "value": 9.90983110666356,
                            "unit": "percent"
                        }
                    ]
                },
                {
                    "period": "2011",
                    "values": [
                        {
                            "metric": "Total primary energy production",
                            "value": 2196966,
                            "unit": "Billion Btu"
                        },
                        {
                            "metric": "Total energy consumption",
                            "value": 3932828,
                            "unit": "Billion Btu"
                        },
                        {
                            "metric": "Population",
                            "value": 12790182,
                            "unit": "persons"
                        },
                        {
                            "metric": "Median household income",
                            "value": 56576,
                            "unit": "US dollars"
                        },
                        {
                            "metric": "Median home value",
                            "value": 198500,
                            "unit": "US dollars"
                        },
                        {
                            "metric": "Unemployment rate",
                            "value": 9.34114133087567,
                            "unit": "percent"
                        }
                    ]
                },
                {
                    "period": "2010",
                    "values": [
                        {
                            "metric": "Total primary energy production",
                            "value": 2096733,
                            "unit": "Billion Btu"
                        },
                        {
                            "metric": "Total energy consumption",
                            "value": 3955722,
                            "unit": "Billion Btu"
                        }
                    ]
                },
                {
                    "period": "2009",
                    "values": [
                        {
                            "metric": "Total primary energy production",
                            "value": 2068369,
                            "unit": "Billion Btu"
                        },
                        {
                            "metric": "Total energy consumption",
                            "value": 3841146,
                            "unit": "Billion Btu"
                        }
                    ]
                },
                {
                    "period": "2008",
                    "values": [
                        {
                            "metric": "Total primary energy production",
                            "value": 1992350,
                            "unit": "Billion Btu"
                        },
                        {
                            "metric": "Total energy consumption",
                            "value": 4070403,
                            "unit": "Billion Btu"
                        }
                    ]
                },
                {
                    "period": "2007",
                    "values": [
                        {
                            "metric": "Total primary energy production",
                            "value": 1973324,
                            "unit": "Billion Btu"
                        },
                        {
                            "metric": "Total energy consumption",
                            "value": 4075892,
                            "unit": "Billion Btu"
                        }
                    ]
                },
                {
                    "period": "2006",
                    "values": [
                        {
                            "metric": "Total primary energy production",
                            "value": 1917259,
                            "unit": "Billion Btu"
                        },
                        {
                            "metric": "Total energy consumption",
                            "value": 3988635,
                            "unit": "Billion Btu"
                        }
                    ]
                },
                {
                    "period": "2005",
                    "values": [
                        {
                            "metric": "Total primary energy production",
                            "value": 1896706,
                            "unit": "Billion Btu"
                        },
                        {
                            "metric": "Total energy consumption",
                            "value": 4138872,
                            "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"
        }
    ],
    "narrative": "Illinois works best as a connected regional system rather than a single trend line. Chicago concentrates metropolitan business, culture, and transportation; Springfield anchors state government; Urbana-Champaign adds a major research and education base; and the rest of the state includes manufacturing centers, agricultural landscapes, river corridors, and smaller communities with different demographic pressures. When the long-run indicators are read together, a mixed pattern emerges: population loses momentum, reported household income and home value rise, unemployment improves from its early level, and total energy use moves lower even as energy production follows a different cycle. Energy supply and energy use follow different cycles Illinois primary energy production builds gradually, accelerates in the middle of the series, then enters a period of pullbacks and partial recoveries. Total energy consumption has a different long-run shape: it begins from a comparatively high level, fluctuates through several rebounds, and ends lower. The contrast matters because statewide supply and statewide use answer different questions. Production can change with generation, fuel extraction, plant decisions, and markets, while consumption also reflects weather, efficiency, transportation, industry, and household demand. The latest stretch brings both measures lower at the same time, but that shared direction should not be over-interpreted. A total-energy series cannot identify whether efficiency, structural economic change, prices, weather, or fuel switching is the main reason. The stronger use of the Data Lab is to identify the long-run breakpoints first, then move to fuel-level or sector-level evidence when a specific explanation is needed. In that sense, Illinois shows a durable energy base that has been repeatedly rebalanced rather than a simple story of continuous expansion or decline. Population, employment and household income separate over time Population rises modestly early in the household-data period, then spends a longer interval declining. Median household income, by contrast, develops a sustained upward path, while the unemployment rate falls substantially from its earlier high. Those three directions are not contradictory. A state can have slower population growth while household earnings measures improve and labor-market slack decreases. Illinois therefore illustrates why population loss should not automatically be treated as a complete verdict on economic conditions. The newest population reading suggests stabilization after larger losses, but one observation is not enough to declare a durable reversal. Unemployment also appears to have stopped improving rapidly. Statewide averages need geographic context: the Chicago metropolitan area, the state-capital region, university communities, industrial cities, and rural counties can experience very different labor and migration patterns. The state total is most useful as an overview, with county and city detail added when the goal is to understand where the change is actually occurring. Housing appreciation changes the meaning of income growth Median home value falls through the early part of the household series, reaches a low point, and then turns into a long upward run. Median household income also rises, but parallel increases do not automatically mean housing becomes easier to afford. Higher home values can strengthen the balance sheets of existing owners while increasing entry costs for first-time or relocating buyers. Rent, mortgage costs, inventory, construction, and local market conditions are therefore necessary companions to the statewide home-value series. This point is especially important in Illinois because housing markets differ sharply across metropolitan Chicago, its suburbs, central Illinois, university communities, and smaller manufacturing or agricultural areas. A statewide median compresses those local differences. The long-run dashboard is best used to locate the housing turning point and compare it with income and population direction. The fact that home values can rise during a period of weak statewide population growth is a reminder that supply, financing, and local demand can matter as much as the headline population total. A network of cities, institutions and landscapes explains the state Chicago is the largest city and the state’s main metropolitan node, with O’Hare connecting Illinois to national and international air networks. Springfield has a different function: it is the seat of state government and a major center for Abraham Lincoln history. Urbana-Champaign adds a research and education role through the University of Illinois. These centers create different labor markets, housing pressures, travel patterns, and public-service demands, which helps explain why statewide statistics often combine several distinct regional stories. The same statewide picture also includes places that are not primarily urban. Starved Rock State Park represents the river-valley landscape and outdoor recreation; Cahokia Mounds places Illinois history in a much deeper Indigenous time frame; and Pullman preserves the intersection of industrial planning, rail manufacturing, labor conflict, and urban design. Connecting these places with the data prevents the regional history from becoming a collection of abstract indicators. Illinois is simultaneously an administrative, industrial, transportation, research, cultural, and natural system. The most useful years are the ones where indicators diverge The early energy years include several moments when production and consumption move in opposite directions. Once population, income, housing, and unemployment join the timeline, the combinations become more informative. There are years when energy production strengthens while housing remains weak and unemployment is still elevated, followed by a period of improving labor conditions, rising income, and a recovery in home value. The pandemic period produces another clear split: energy activity and population weaken while reported household-dollar measures continue along a different path. The latest year again shows a mixed system. Energy production and consumption move lower, population is close to stable, household income and home value continue upward, and unemployment edges up from a lower level. No single indicator can summarize that combination. The time tree is therefore most useful as a navigation tool: identify a year where several measures change direction, read the year-specific context, and then open the relevant metric or place history for a deeper explanation. 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 rate FAQ What should I look at first when reading long-run change in Illinois? Start with the combination of population, unemployment, median household income, median home value, energy production, and energy consumption. Illinois often shows divergence across these measures, so any single indicator leaves out an important part of the regional picture. Does rising home value mean housing conditions are improving? Not necessarily. Higher values can benefit existing owners while raising entry costs for buyers. Income, rents, housing supply, financing costs, and local market differences are needed to interpret affordability. Does Chicago represent all of Illinois? Chicago is the state’s dominant metropolitan and transportation center, but it does not represent every regional pattern. Springfield, Urbana-Champaign, other cities, and rural areas have different government, research, industry, demographic, and housing roles. Illinois changes through several overlapping systems rather than one statewide cycle. Energy production and consumption can separate, population can stagnate while income and home values rise, and labor-market improvement can occur without strong population growth. The place network adds another layer: Chicago organizes major metropolitan and transport functions, Springfield concentrates government and historical institutions, Urbana-Champaign anchors research and education, and major natural and cultural sites broaden the state beyond its cities. The most useful question is therefore not simply whether Illinois is “up” or “down,” but which indicators are moving together, which are diverging, and where those transitions occur."
}