Board of Governors of the Federal Reserve System (U.S.), 1935-. "Federal Reserve Statistical Release," in Board of Governors of the Federal Reserve System (U.S.), 1935-. "December 19, 1991," H.3 Aggregate Reserves of Depository Institutions and the Monetary Base (1991-12-19) : 1-1. https://fraser.stlouisfed.org/title/88/item/68080/toc/477517 , accessed on March 29, 2024.