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-. "February 8, 1977," Z.1 Financial Accounts of the United States (1977-02-08) : 19-19. https://fraser.stlouisfed.org/title/93/item/69135/toc/465814 , accessed on March 28, 2024.