Board of Governors of the Federal Reserve System (U.S.), 1935-. "Charts," in Board of Governors of the Federal Reserve System (U.S.), 1935-. "August 18, 1986," G.3 Capacity Utilization, Manufacturing, Mining, Utilities and Industrial Materials (1986-08-18) : 2-2. https://fraser.stlouisfed.org/title/51/item/56858/toc/492510 , accessed on April 18, 2024.