United States. Bureau of Economic Analysis. "Personal Income and Outlays, January 2021 : Full Release, BEA 21-07," Bureau of Economic Analysis (BEA) News Releases (February 26, 2021). https://fraser.stlouisfed.org/title/6148/item/600715/content/pdf/bea_newsreleases_20210226, accessed on March 25, 2025.