List with the number of annual regional network travelcards in circulation per network, summarised by the postal code of the recipient’s place of residence. Last updated 31.03.2021 with 2020 dataInformation on the following networks is not included: FrimobilUniresoMobilis Explanations of the column labels: Jahr_An_Anno_YearYear of the key date for the data extract. The data extract takes places in week 52 of the year of reference.PLZ_NPA Four-digit postal code in accordance with the cadastre.ch directory of towns and cities.Verbund_Communaute_Comunita_NetworkNetworkAnzahl_Nombre_Quantita_NumberNumber of travelcards in circulation on the key date. (Annual travelcards)FlagIf 3: for data protection reasons, the average quantity of travelcards is specified for all districts that share the same first number and have fewer than 20 travelcards.