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-. "February 17, 1981," Z.1 Financial Accounts of the United States (1981-02-17) : 37-37. https://fraser.stlouisfed.org/title/93/item/69064/toc/480734 , accessed on March 29, 2024.