Real Gross Domestic Product: Professional and Business Services (NAICS 54, 55, 56) in Illinois was 134855.30000 Mil. of Chn. 2009 $ in January of 2022, according to the United States Federal Reserve. Historically, Real Gross Domestic Product: Professional and Business Services (NAICS 54, 55, 56) in Illinois reached a record high of 134855.30000 in January of 2022 and a record low of 68006.20000 in January of 1997. Trading Economics provides the current actual value, an historical data chart and related indicators for Real Gross Domestic Product: Professional and Business Services (NAICS 54, 55, 56) in Illinois - last updated from the United States Federal Reserve on March of 2024.