Board of Governors of the Federal Reserve System (U.S.), 1935-. "Chart - Industrial Production, Capacity, and Utilization," in Board of Governors of the Federal Reserve System (U.S.), 1935-. "January 27, 1997 : Historical Revision," G.17 Industrial Production and Capacity Utilization (1997-01-27) : 5-5. https://fraser.stlouisfed.org/title/77/item/63662/toc/456166 , accessed on March 28, 2024.