Producer Price Index by Commodity: Intermediate Demand by Production Flow: Inputs to Stage 4 Goods Producers, Goods (WPSID5411)

U.S. Bureau of Labor Statistics, Producer Price Index by Commodity: Intermediate Demand by Production Flow: Inputs to Stage 4 Goods Producers, Goods [WPSID5411], retrieved from FRED, Federal Reserve Bank of St. Louis; https://fred.stlouisfed.org/series/WPSID5411, .