One passenger-kilometre represents the transport of one passenger by rail over a distance of one kilometre.
The distance refers to the distance actually travelled by the passenger on the network. In cases where this is not available, the distance charged or estimated may be shown. Refers to only the pkm performed on a country's territory.
Values for the following countries are missing and correspond to the previous year, Greece, Italy. Source: UNECE Transport Statistics Database, compiled from national and international official sources.
For definitions, see the Glossary for Transport Statistics.