Board of Governors of the Federal Reserve System (U.S.), 1935-. "State and Local Government Securities, Seasonally Adjusted Annual Rates," in Board of Governors of the Federal Reserve System (U.S.), 1935-. "August 17, 1977 : Revision 1967-76," Z.1 Financial Accounts of the United States (1977-08-17) : 42-42. https://fraser.stlouisfed.org/title/93/item/69134/toc/478030 , accessed on March 29, 2024.