Source: U.S. Bureau of Economic Analysis
Release: Gross Domestic Product
BEA Account Code: IA000004
A Guide to the National Income and Product Accounts of the United States (NIPA) - (http://www.bea.gov/national/pdf/nipaguid.pdf)
U.S. Bureau of Economic Analysis, Price Index for Imports of goods: Industrial supplies and materials [IA0000043A086NBEA], retrieved from FRED, Federal Reserve Bank of St. Louis; https://fred.stlouisfed.org/series/IA0000043A086NBEA, October 17, 2019.