Source: U.S. Bureau of Labor Statistics
Release: Employment Situation
The series comes from the 'Current Population Survey (Household Survey)'
The source code is: LNU04000024
U.S. Bureau of Labor Statistics, Unemployment Rate: 20 years and over [LNU04000024], retrieved from FRED, Federal Reserve Bank of St. Louis; https://fred.stlouisfed.org/series/LNU04000024, March 21, 2019.