Board of Governors of the Federal Reserve System (U.S.), 1935-. "U.S. Government, Seasonally Adjusted Annual Rates," in Board of Governors of the Federal Reserve System (U.S.), 1935-. "August 31, 1983 : Annual Revisions," Z.1 Financial Accounts of the United States (1983-08-31) : 25-25. https://fraser.stlouisfed.org/title/93/item/69073/toc/481616 , accessed on June 21, 2024.