Source: US. Bureau of Labor Statistics
Release: Employment Situation
The series comes from the 'Current Population Survey (Household Survey)'
The source code is: LNU01300060
US. Bureau of Labor Statistics, Civilian Labor Force Participation Rate: 25 to 54 years [LNU01300060], retrieved from FRED, Federal Reserve Bank of St. Louis; https://fred.stlouisfed.org/series/LNU01300060, December 9, 2016.