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-. "1993," Annual Statistical Digest (November 1994) : 179-179. https://fraser.stlouisfed.org/title/7/item/23499/toc/428237 , accessed on May 10, 2024.