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-. "December 6, 1989," Z.1 Financial Accounts of the United States (1989-12-06) : 25-25. https://fraser.stlouisfed.org/title/93/item/69138/toc/476535 , accessed on June 27, 2024.