All Employees: Professional and Business Services: Advertising, Public Relations, and Related Services in Illinois was 30.57454 Thous. of Persons in March of 2024, according to the United States Federal Reserve. Historically, All Employees: Professional and Business Services: Advertising, Public Relations, and Related Services in Illinois reached a record high of 34.48920 in May of 2018 and a record low of 25.46433 in November of 2009. Trading Economics provides the current actual value, an historical data chart and related indicators for All Employees: Professional and Business Services: Advertising, Public Relations, and Related Services in Illinois - last updated from the United States Federal Reserve on April of 2024.