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-. "1987," Annual Statistical Digest (October 1988) : 91-91. https://fraser.stlouisfed.org/title/7/item/23493/toc/193450 , accessed on April 22, 2024.