(Short tons, thousands)
| 2000 | 2005 | 2006 | 2007 | 2008 | |
|---|---|---|---|---|---|
| Imports | 110 | 169 | 186 | 203 | 200 |
| Exports | 81 | 134 | 152 | 186 | 183 |
| TOTAL | 191 | 303 | 339 | 389 | 384 |
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.