United States. Bureau of Economic Analysis. "Personal Income and Outlays: May 2016 : Historical Comparisons, BEA 16-33," Bureau of Economic Analysis (BEA) News Releases (June 29, 2016). https://fraser.stlouisfed.org/title/6148/item/602352/content/pdf/bea_newsreleases_20160629_historical-comparison, accessed on March 25, 2025.