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-. "June 5, 1987," Z.1 Financial Accounts of the United States (1987-06-05) : 39-39. https://fraser.stlouisfed.org/title/93/item/69104/toc/483378 , accessed on June 3, 2024.