Board of Governors of the Federal Reserve System (U.S.), 1935-. "Selected Interest Rates (Weeks Ending Wednesdays)," in Board of Governors of the Federal Reserve System (U.S.), 1935-. "May 22, 1989," H.15 Selected Interest Rates (1989-05-22) : 2-2. https://fraser.stlouisfed.org/title/86/item/67851/toc/463995 , accessed on April 18, 2024.