United States. President and Council of Economic Advisers (U.S.). "U.S. Merchandise Exports, Imports, and Trade Balance," in United States. President and Council of Economic Advisers (U.S.). "1993," Economic Report of the President (1993) : 467-467. https://fraser.stlouisfed.org/title/45/item/8092/toc/317945 , accessed on May 11, 2024.