Source: U.S. Bureau of Labor Statistics
Release: U.S. Import and Export Price Indexes
For more information, please see the Import/Export Price Indexes web site at https://www.bls.gov/mxp/
U.S. Bureau of Labor Statistics, Import Price Index (Harmonized System): Optical, Photographic, Cinematographic, Measuring, Checking, Precision, Medical or Surgical Instruments and Apparatus; Parts and Accessories Thereof [IP90], retrieved from FRED, Federal Reserve Bank of St. Louis; https://fred.stlouisfed.org/series/IP90, April 21, 2021.