United States. Bureau of Economic Analysis. "Gross Domestic Product, Fourth Quarter and Year 2023 (Advance Estimate) : Highlights, BEA 24-02," Bureau of Economic Analysis (BEA) News Releases (January 25, 2024). https://fraser.stlouisfed.org/title/6148/item/659193/content/pdf/bea_newsreleases_20240125_highlights, accessed on March 23, 2025.