United States. Bureau of Economic Analysis. "Personal Income and Outlays: September 2019 : Historical Comparison, BEA 19-56," Bureau of Economic Analysis (BEA) News Releases (October 31, 2019). https://fraser.stlouisfed.org/title/6148/item/602826/content/pdf/bea_newsreleases_20191031_historical-comparison, accessed on March 15, 2025.