Source: U.S. Bureau of Economic Analysis
Release: Gross Domestic Product
BEA Account Code: N4665C
For more information about this series, please see http://www.bea.gov/national/.
U.S. Bureau of Economic Analysis, Persons engaged in production: Domestic private industries: Professional, scientific, and technical services [N4665C0A173NBEA], retrieved from FRED, Federal Reserve Bank of St. Louis; https://fred.stlouisfed.org/series/N4665C0A173NBEA, September 16, 2019.