Chain-Type Quantity Index for Real GDP: Construction (NAICS 23) in Illinois was 111.34900 Index 2009=100 in January of 2021, according to the United States Federal Reserve. Historically, Chain-Type Quantity Index for Real GDP: Construction (NAICS 23) in Illinois reached a record high of 184.04200 in January of 2005 and a record low of 97.77800 in July of 2012. Trading Economics provides the current actual value, an historical data chart and related indicators for Chain-Type Quantity Index for Real GDP: Construction (NAICS 23) in Illinois - last updated from the United States Federal Reserve on April of 2024.