Source: US. Bureau of Labor Statistics
Release: Employment Situation
The series comes from the 'Current Population Survey (Household Survey)'
The source code is: LNS12000093
US. Bureau of Labor Statistics, Employment Level: 45 to 54 years [LNS12000093], retrieved from FRED, Federal Reserve Bank of St. Louis; https://fred.stlouisfed.org/series/LNS12000093, December 9, 2016.