Observations

Q2 2026: 59.133

Updated: Sep 30, 2026 10:48 AM CDT

Units:

Index 2017=100,

Seasonally Adjusted

Frequency:

Quarterly

Notes

Title	Release Dates

Quantity Indexes for Real Gross Domestic Product by Industry: Private Industries: Mining for Illinois	2016-07-27	2021-06-21
Chain-Type Quantity Index for Real GDP: Mining, Quarrying, and Oil and Gas Extraction (NAICS 21) in Illinois	2021-06-22	2023-12-04
Chain-Type Quantity Index for Real GDP: Mining, Quarrying, and Oil and Gas Extraction (21) in Illinois	2023-12-05	2026-09-30

Source

U.S. Bureau of Economic Analysis	2016-07-27	2026-09-30

Release

Gross Domestic Product (GDP) by State	2016-07-27	2021-02-15
Gross Domestic Product by State	2021-02-16	2026-09-30

Units

Index 2009=100	2016-07-27	2018-11-13
Index 2012=100	2018-11-14	2023-12-04
Index 2017=100	2023-12-05	2026-09-30

Frequency

Quarterly	2016-07-27	2026-09-30

Seasonal Adjustment

Seasonally Adjusted	2016-07-27	2026-09-30

Notes

For more information about this release go to http://www.bea.gov/newsreleases/regional/gdp_state/qgsp_newsrelease.htm.	2016-07-27	2021-06-21
Information about this release can be found here (https://www.bea.gov/data/gdp/gdp-state). For information about BEA industries and other regional definitions, visit their Regional Economic Accounts: Regional Definitions website (https://apps.bea.gov/regional/definitions/).	2021-06-22	2026-09-30

Chain-Type Quantity Index for Real GDP: Mining, Quarrying, and Oil and Gas Extraction (21) in Illinois (ILMINQQGSP)