Japan Railway
Major private railways
Other private railways
Third-Sector railways
Subways
Trams
New transit systems
... under the age of 18, 6.9% from 18 to 24, 36.3% from 25 to 44, 25.1% from 45 to 64, and 7.0% who are 65 years of age or older. The median age is 36 years. For every ...