The Harmonized Index of Consumer Prices category "Catering Services (11.1)" is a classification of services. This category contains Restaurants, cafés, and the Like (11.1.1) and Canteens (11.1.2) subcategories. This category is a subcategory of Restaurants and Hotels (11) category.
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.
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Eurostat, Harmonized Index of Consumer Prices: Catering Services for Bulgaria© [CP1110BGM086NEST], retrieved from FRED, Federal Reserve Bank of St. Louis; https://fred.stlouisfed.org/series/CP1110BGM086NEST, July 20, 2017.