Chart 2. Public and other transportation subcategory, expenditure shares, 2018–21 (in percent)
Mode 2018 2019 2020 2021

Airline fares

61.2 65.7 60.8 71.3

Intercity bus fares

1.6 2.0 0.8 0.9

Intracity mass-transit fares

10.2 10.8 14.8 10.0

Local transportation on out-of-town trips

3.0 2.6 2.6 3.1

Taxi fares and limousine services

8.8 6.1 12.2 5.4

Intercity train fares

3.7 3.9 3.0 2.5

Ship fares

9.6 7.2 4.3 4.3

Source: U.S. Bureau of Labor Statistics.