Source: US. Bureau of Labor Statistics
Release: Employment Situation
The series comes from the 'Current Population Survey (Household Survey)'
The source code is: LNU03032218
US. Bureau of Labor Statistics, Unemployment Level: Service Occupations [LNU03032218], retrieved from FRED, Federal Reserve Bank of St. Louis; https://fred.stlouisfed.org/series/LNU03032218, December 6, 2016.