($ millions)
1999 | 2000 | 2001 | 2002 | 2003 | |
---|---|---|---|---|---|
Truck | 15,584 | 18,760 | 19,385 | 20,368 | 19,661 |
Rail | NA | NA | NA | NA | NA |
Pipeline | 2 | 2 | 1 | 0.2 | NA |
Other and unknown | 42 | 12 | 15 | 18 | 18 |
Total | 15,585 | 18,761 | 19,386 | 20,386 | 19,678 |
SOURCE: U.S. Department of Transportation, Bureau of Transportation Statistics, Transborder Surface Freight Data, 1999-2003.