Source: U.S. Bureau of Labor Statistics
Release: Employment Situation
The series comes from the 'Current Population Survey (Household Survey)'
The source code is: LNU03008636
U.S. Bureau of Labor Statistics, Number of Civilians Unemployed for 27 Weeks and Over [LNU03008636], retrieved from FRED, Federal Reserve Bank of St. Louis; https://fred.stlouisfed.org/series/LNU03008636, March 19, 2018.