Chain-Type Quantity Index for Real GDP: Educational Services (NAICS 61) in Illinois was 88.61100 Index 2009=100 in January of 2021, according to the United States Federal Reserve. Historically, Chain-Type Quantity Index for Real GDP: Educational Services (NAICS 61) in Illinois reached a record high of 100.42100 in April of 2012 and a record low of 73.63800 in October of 2005. Trading Economics provides the current actual value, an historical data chart and related indicators for Chain-Type Quantity Index for Real GDP: Educational Services (NAICS 61) in Illinois - last updated from the United States Federal Reserve on April of 2024.