Source: U.S. Bureau of Labor Statistics
Release: Employment Situation
The series comes from the 'Current Employment Statistics (Establishment Survey).'
The source code is: CEU4349200001
U.S. Bureau of Labor Statistics, All Employees: Transportation and Warehousing: Couriers and Messengers [CEU4349200001], retrieved from FRED, Federal Reserve Bank of St. Louis; https://fred.stlouisfed.org/series/CEU4349200001, September 22, 2017.