(Short tons, thousands)
| 2000 | 2005 | 2006 | 2007 | 2008 | |
|---|---|---|---|---|---|
| Imports | 72 | 51 | 55 | 52 | 59 |
| Exports | 62 | 64 | 68 | 68 | 82 |
| TOTAL | 134 | 115 | 124 | 120 | 141 |
SOURCE: U.S. Department of Transportation, Research and Innovative Technology Administration, Bureau of Transportation Statistics, Form 41 Traffic-Segment Data, various years, as of July 20, 2009.