United States. Bureau of Economic Analysis. "Personal Income and Outlays: September 2015 : Historical Comparison, BEA 15-51," Bureau of Economic Analysis (BEA) News Releases (October 30, 2015). https://fraser.stlouisfed.org/title/6148/item/602269/content/pdf/bea_newsreleases_20151030_historical-comparison, accessed on March 16, 2025.