Source: U.S. Bureau of Economic Analysis
Release: Gross Domestic Product
BEA Account Code: Y006RV
For more information about this series, please see http://www.bea.gov/national/."
U.S. Bureau of Economic Analysis, Gross Private Domestic Investment: Fixed Investment: Nonresidential: Intellectual Property Products: Research and Development (chain-type price index) [Y006RV1Q225SBEA], retrieved from FRED, Federal Reserve Bank of St. Louis; https://fred.stlouisfed.org/series/Y006RV1Q225SBEA, March 19, 2018.