Year | Air transportation | Line-haul railroads | Truck transportation | Urban transit systems |
---|---|---|---|---|
2007 |
100 | 100 | 100 | 100 |
2008 |
107.16 | 104.45 | 99.13 | 99.78 |
2009 |
104.90 | 100.37 | 94.98 | 101.78 |
2010 |
102.12 | 108.50 | 104.59 | 99.41 |
2011 |
101.67 | 105.51 | 106.08 | 102.79 |
2012 |
108.78 | 106.67 | 104.85 | 105.17 |
2013 |
114.30 | 109.48 | 105.08 | 109.00 |
2014 |
113.72 | 112.50 | 107.76 | 105.14 |
2015 |
113.09 | 114.12 | 107.77 | 99.52 |
Source: U.S. Bureau of Labor Statistics. |