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-. "May 12, 1980," Z.1 Financial Accounts of the United States (1980-05-12) : 34-34. https://fraser.stlouisfed.org/title/93/item/69089/toc/480266 , accessed on April 24, 2024.