Board of Governors of the Federal Reserve System (U.S.), 1935-. "Industrial Production: Market Groups," in Board of Governors of the Federal Reserve System (U.S.), 1935-. "May 15, 1996," G.17 Industrial Production and Capacity Utilization (1996-05-15) : 5-6. https://fraser.stlouisfed.org/title/77/item/63653/toc/456072 , accessed on April 19, 2024.