Real Gross Domestic Product: Professional, Scientific, and Technical Services (NAICS 54) in Illinois was 71952.00000 Mil. of Chn. 2009 $ in January of 2021, according to the United States Federal Reserve. Historically, Real Gross Domestic Product: Professional, Scientific, and Technical Services (NAICS 54) in Illinois reached a record high of 71952.00000 in January of 2021 and a record low of 40365.10000 in January of 1997. Trading Economics provides the current actual value, an historical data chart and related indicators for Real Gross Domestic Product: Professional, Scientific, and Technical Services (NAICS 54) in Illinois - last updated from the United States Federal Reserve on April of 2024.