Source: U.S. Bureau of Economic Analysis
Release: Gross Domestic Product
BEA Account Code: J4507C
For more information about this series, please see http://www.bea.gov/national/."
U.S. Bureau of Economic Analysis, Self-employed persons: Manufacturing [J4507C0A173NBEA], retrieved from FRED, Federal Reserve Bank of St. Louis; https://fred.stlouisfed.org/series/J4507C0A173NBEA, January 22, 2018.