Source: U.S. Bureau of Labor Statistics
Release: Employment Situation
The series comes from the 'Current Population Survey (Household Survey)'
The source code is: LNU03000060
U.S. Bureau of Labor Statistics, Unemployment Level: 25 to 54 years [LNU03000060], retrieved from FRED, Federal Reserve Bank of St. Louis; https://fred.stlouisfed.org/series/LNU03000060, March 23, 2018.