Source: US. Bureau of Labor Statistics
Release: Employment Situation
The series comes from the 'Current Population Survey (Household Survey)'
The source code is: LNU03008275
US. Bureau of Labor Statistics, Average (Mean) Duration of Unemployment [LNU03008275], retrieved from FRED, Federal Reserve Bank of St. Louis; https://fred.stlouisfed.org/series/LNU03008275, December 10, 2016.