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-. "May 12, 1980," Z.1 Financial Accounts of the United States (1980-05-12) : 36-36. https://fraser.stlouisfed.org/title/93/item/69089/toc/480236 , accessed on April 19, 2024.