Source:
U.S. Bureau of Labor Statistics
Release:
Producer Price Index
Units:
Index Apr 2009=100, Not Seasonally Adjusted
Frequency:
Monthly
Suggested Citation:
U.S. Bureau of Labor Statistics,
Producer Price Index by Commodity: Transportation Services: Air Mail and Package Delivery Services, Excluding by USPS [WPU30160301],
retrieved from FRED,
Federal Reserve Bank of St. Louis;
https://fred.stlouisfed.org/series/WPU30160301,
January 26, 2021.