Board of Governors of the Federal Reserve System (U.S.), 1935-. "Insurance and Pension Fund Reserves, 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) : 45-45. https://fraser.stlouisfed.org/title/93/item/69143/toc/475370 , accessed on April 18, 2024.