U.S. Bureau of Labor Statistics, Producer Price Index by Commodity: Textile Products and Apparel: Finished Manmade, Silk, and Natural Fiber (Excluding Cotton/Wool) Broadwoven, Finished in Weaving Mills [WPU034203061], retrieved from FRED, Federal Reserve Bank of St. Louis; https://fred.stlouisfed.org/series/WPU034203061, .