Board of Governors of the Federal Reserve System (U.S.), 1935-. "Index of weighted-average value of U.S. dollar," in Board of Governors of the Federal Reserve System (U.S.), 1935-. "1983," Annual Statistical Digest (October 1984) : 192-192. https://fraser.stlouisfed.org/title/7/item/23510/toc/319319 , accessed on May 4, 2024.