Producer Price Index by Commodity for Machinery and Equipment: Underground Mining Machinery (Except Parts Sold Separately) (WPU119201)

U.S. Bureau of Labor Statistics, Producer Price Index by Commodity for Machinery and Equipment: Underground Mining Machinery (Except Parts Sold Separately) [WPU119201], retrieved from FRED, Federal Reserve Bank of St. Louis; https://fred.stlouisfed.org/series/WPU119201, February 3, 2023.