Average Weekly Hours of All Employees: Professional and Business Services in Illinois (DISCONTINUED) was 36.15103 Hours per Week in March of 2022, according to the United States Federal Reserve. Historically, Average Weekly Hours of All Employees: Professional and Business Services in Illinois (DISCONTINUED) reached a record high of 37.50204 in November of 2020 and a record low of 34.71131 in January of 2007. Trading Economics provides the current actual value, an historical data chart and related indicators for Average Weekly Hours of All Employees: Professional and Business Services in Illinois (DISCONTINUED) - last updated from the United States Federal Reserve on April of 2024.