The Harmonized Index of Consumer Prices category "Passenger Transport by Air (07.3.3)" is a classification of services that includes transport of individuals and groups of persons and luggage by airplane and helicopter.
This category is a subcategory of the Transport (07) and of Transport Services (07.3) categories.
Information provided in the notes pertaining to HICP classifications can be found from the source at: http://ec.europa.eu/eurostat/cache/metadata/en/prc_hicp_esms.htm.
Copyright, European Union, 1995-2016, http://ec.europa.eu/geninfo/legal_notices_en.htm#copyright.
Eurostat, Harmonized Index of Consumer Prices: Passenger Transport by Air for Bulgaria [CP0733BGM086NEST], retrieved from FRED, Federal Reserve Bank of St. Louis; https://fred.stlouisfed.org/series/CP0733BGM086NEST, April 18, 2021.