Source: US. Bureau of Labor Statistics
Release: Employment Situation
The series comes from the 'Current Population Survey (Household Survey)'
The source code is: LNS13008516
US. Bureau of Labor Statistics, Number of Civilians Unemployed for 15 Weeks and Over [UEMP15OV], retrieved from FRED, Federal Reserve Bank of St. Louis; https://fred.stlouisfed.org/series/UEMP15OV, December 8, 2016.