United States. Bureau of Economic Analysis. "New Foreign Direct Investment in the United States, 2021 : Full Release, BEA 22-31," Bureau of Economic Analysis (BEA) News Releases (July 6, 2022). https://fraser.stlouisfed.org/title/6148/item/616560/content/pdf/bea_newsreleases_22-31_20220706, accessed on March 18, 2025.