Average Passenger Fares
KEY: N = data do not exist; U = data are not available.
a Regular route Intercity service.
b Prior to 1984, excludes commuter railroad, automated guideway, urban ferryboat, demand responsive, and most rural and smaller systems.
c This category is now deflated using the railway transportation instead of mass transit deflator and the Intercity rail deflator used in previous editions.
d Amtrak began operations in 1971.