Producer Price Index by Commodity: Telecommunication, Cable, and Internet User Services: All-Distance Residential Wired Telephone Service (WPU37110301)

U.S. Bureau of Labor Statistics, Producer Price Index by Commodity: Telecommunication, Cable, and Internet User Services: All-Distance Residential Wired Telephone Service [WPU37110301], retrieved from FRED, Federal Reserve Bank of St. Louis; https://fred.stlouisfed.org/series/WPU37110301, June 27, 2022.