Source: U.S. Bureau of Labor Statistics
Release: Employment Situation
The series comes from the 'Current Employment Statistics (Establishment Survey).'
The source code is: CEU4000000016
U.S. Bureau of Labor Statistics, Indexes of Aggregate Weekly Hours of All Employees: Trade, Transportation, and Utilities [CEU4000000016], retrieved from FRED, Federal Reserve Bank of St. Louis; https://fred.stlouisfed.org/series/CEU4000000016, April 20, 2018.