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 8, 1989," H.15 Selected Interest Rates (1989-05-08) : 2-2. https://fraser.stlouisfed.org/title/86/item/67701/toc/463991 , accessed on April 23, 2024.