Board of Governors of the Federal Reserve System (U.S.), 1935-. "Stock Market - Selected Statistics," in Board of Governors of the Federal Reserve System (U.S.), 1935-. "1980-1989," Annual Statistical Digest (March 1991) : 163-167. https://fraser.stlouisfed.org/title/7/item/23495/toc/414284 , accessed on March 28, 2024.