Source: U.S. Bureau of Labor Statistics
Release: Employment Situation
The series comes from the 'Current Employment Statistics (Establishment Survey).'
The source code is: CES4000000001
U.S. Bureau of Labor Statistics, All Employees: Trade, Transportation and Utilities [USTPU], retrieved from FRED, Federal Reserve Bank of St. Louis; https://fred.stlouisfed.org/series/USTPU, February 17, 2018.