Source: U.S. Bureau of Economic Analysis
Release: Gross Domestic Product
BEA Account Code: A014RX
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, Real Change in Private Inventories [CBICA], retrieved from FRED, Federal Reserve Bank of St. Louis; https://fred.stlouisfed.org/series/CBICA, February 22, 2019.