Norway's main railway network consists of  of standard gauge lines, of which  is double track and  high-speed rail (210 km/h) while 62% is electrified at . The railways transported 56,827,000 passengers 2,956 million passenger-kilometres and 24,783,000 tonnes of cargo 3,414 million tonne-kilometres. The entire network is owned by the Norwegian National Rail Administration. All domestic passenger trains except the Airport Express Train are operated by Norges Statsbaner (NSB). Several companies operate freight trains.