Source: US. Bureau of Labor Statistics
Release: Employment Situation
The series comes from the 'Current Employment Statistics (Establishment Survey).'
The source code is: CES8081300001
US. Bureau of Labor Statistics, All Employees: Other Services: Membership Associations and Organizations [CES8081300001], retrieved from FRED, Federal Reserve Bank of St. Louis; https://fred.stlouisfed.org/series/CES8081300001, August 25, 2016.