Board of Governors of the Federal Reserve System (U.S.), 1935-. "Capacity Utilization: Manufacturing, Mining, and Utilities," in Board of Governors of the Federal Reserve System (U.S.), 1935-. "December 16, 1991," G.17 Industrial Production and Capacity Utilization (1991-12-16) : 8-8. https://fraser.stlouisfed.org/title/77/item/63597/toc/454901 , accessed on May 7, 2024.