Board of Governors of the Federal Reserve System (U.S.), 1935-. "Diffusion Indexes of Industrial Production," in Board of Governors of the Federal Reserve System (U.S.), 1935-. "January 17, 1992," G.17 Industrial Production and Capacity Utilization (1992-01-17) : 15-15. https://fraser.stlouisfed.org/title/77/item/63598/toc/454954 , accessed on April 25, 2024.