4-4,,,,,,,
U.S. Domestic Freight Ton-Miles by Mode: 1990–2006,,,,,,,
Billions,,,,,,,
Mode,1990,2000,R2005,2006,"Percent change, 1990-2006",,
Total,"3,622","4,329","4,575","4,638",28.0,,
Air,10.4,15.8,15.7,15.4,47.4,,
Truck,848.8,"1,192.8","1,291.5","1,294.5",52.5,,
Railroad,"1,064.4","1,546.3","1,733.8","1,852.8",74.1,,
Water,833.5,645.8,591.3,561.6,-32.6,,
Pipeline,864.8,927.9,942.4,913.2,5.6,,
Key: R = revised.,,,,,,,
"Note: Air, Truck and Pipeline data are revised for 2005.",,,,,,,
"Source: U.S. Department of Transportation, Research and Innovative Technology Administration, Bureau of Transportation Statistics, National Transportation Statistics, Table 1-46b, available at http://www.bts.gov/publications/national_transportation_statistics/ as of October 2008.",,,,,,,










,,,,,,,
,,,,,,,
,,,,,,,
,,,,,,,
,,,,,,,
,,,,,,,
,,,,,,,
,,,,,,,
,,,,,,,
,,,,
,,,,
,,,,