United States. Bureau of Economic Analysis. "U.S. International Trade in Goods and Services, March 2022 : Full Release, BEA 22-19, CB 22-71," Bureau of Economic Analysis (BEA) News Releases (May 4, 2022). https://fraser.stlouisfed.org/title/6148/item/612088/content/pdf/bea_newsreleases_20220504, accessed on March 27, 2025.