Board of Governors of the Federal Reserve System (U.S.), 1935-. "Security Brokers and Dealers, Seasonally Adjusted Annual Rates," in Board of Governors of the Federal Reserve System (U.S.), 1935-. "September 12, 1991," Z.1 Financial Accounts of the United States (1991-09-12) : 43-43. https://fraser.stlouisfed.org/title/93/item/69143/toc/475323 , accessed on March 28, 2024.