Source: U.S. Bureau of Economic Analysis
Release: Gross Domestic Product
BEA Account Code: B4511C
For more information about this series, please see http://www.bea.gov/national/."
U.S. Bureau of Economic Analysis, Self-employed persons: Wholesale trade [B4511C0A173NBEA], retrieved from FRED, Federal Reserve Bank of St. Louis; https://fred.stlouisfed.org/series/B4511C0A173NBEA, December 15, 2017.