Gross Domestic Product (Third Estimate), Corporate Profits, and GDP by Industry, Fourth Quarter and Year 2020 : Tables, BEA 21-11
United States. Department of Commerce. "Gross Domestic Product (Third Estimate), Corporate Profits, and GDP by Industry, Fourth Quarter and Year 2020 : Tables, BEA 21-11," United States Department of Commerce News (March 25, 2021). https://fraser.stlouisfed.org/title/6148/item/601651/content/xlsx/bea_newsreleases_20210325_tables, accessed on June 2, 2026.