Source: US. Bureau of Labor Statistics
Release: Employment Situation
The series comes from the 'Current Population Survey (Household Survey)'
The source code is: LNU02032211
US. Bureau of Labor Statistics, Employment Level: Installation, Maintenance, and Repair Occupations [LNU02032211], retrieved from FRED, Federal Reserve Bank of St. Louis; https://fred.stlouisfed.org/series/LNU02032211, December 4, 2016.