All Employees: Education and Health Services: Ambulatory Health Care Services in Illinois was 283.23541 Thous. of Persons in March of 2024, according to the United States Federal Reserve. Historically, All Employees: Education and Health Services: Ambulatory Health Care Services in Illinois reached a record high of 283.23541 in March of 2024 and a record low of 116.62310 in February of 1990. Trading Economics provides the current actual value, an historical data chart and related indicators for All Employees: Education and Health Services: Ambulatory Health Care Services in Illinois - last updated from the United States Federal Reserve on May of 2024.