17882001185019001950Railway lines (km)Mail (units handled)TelegramsLandline phonesElectricity output (MWhrs)Commercial carsPrivate carsTextile spindlesRailway freight traffic (metric ton-km)Air passenger traffic (passenger-km)Steel (metric tons)Railway passenger traffic (passenger-km)Air freight traffic (freight ton-km)Industrial robotsMobile phonesRegistered merchant ships (total tonnage)