Board of Governors of the Federal Reserve System (U.S.), 1935-. "Industrial Capacity: Manufacturing, Mining, and Utilities," in Board of Governors of the Federal Reserve System (U.S.), 1935-. "September 17, 1991," G.17 Industrial Production and Capacity Utilization (1991-09-17) : 9-9. https://fraser.stlouisfed.org/title/77/item/63594/toc/454855 , accessed on March 29, 2024.