Deadweight tons (DWT) per call
| Combination | Tanker | Dry bulk | Container | Roll-on/roll-off vessels | Gas carriers | General cargo | All vessels | |
|---|---|---|---|---|---|---|---|---|
| 1998 | 82,895 | 68,670 | 41,740 | 36,243 | 19,898 | 29,954 | 21,409 | 45,289 |
| 1999 | 88,433 | 67,723 | 41,833 | 36,586 | 18,662 | 31,402 | 22,331 | 45,117 |
| 2000 | 89,462 | 67,551 | 41,694 | 37,784 | 18,456 | 31,397 | 22,857 | 45,646 |
| 2001 | 87,873 | 69,313 | 42,142 | 39,656 | 20,445 | 33,438 | 23,416 | 47,034 |
| 2002 | 84,459 | 69,412 | 42,876 | 42,158 | 20,376 | 32,099 | 23,496 | 47,625 |
| 2003 | 84,016 | 72,387 | 42,685 | 43,168 | 20,270 | 37,818 | 23,655 | 49,557 |
| 2004 | 84,699 | 70,690 | 42,972 | 43,610 | 20,191 | 39,145 | 24,542 | 49,125 |
| 2005 | 87,151 | 72,056 | 43,276 | 44,593 | 19,838 | 41,411 | 25,101 | 50,083 |
| 2006 | 86,344 | 71,831 | 44,746 | 46,598 | 19,751 | 40,738 | 25,446 | 50,672 |
| 2007 | 93,617 | 72,222 | 45,270 | 47,720 | 19,635 | 40,462 | 25,572 | 51,658 |
NOTES: Calls are by oceangoing vessels of 10,000 DWT or greater at U.S. ports, excluding Great Lakes ports. 1998 is the first year for which data are available. Beginning in 2002, chemical tanker data are no longer reported separately and are, instead, included in tanker data; historical data were adjusted for consistency. See Glossary for an explanation of the vessel types.
SOURCES: 1998-2001: U.S. Department of Transportation, Maritime Administration, Office of Statistical and Economic Analysis, Vessel Calls at U.S. Ports Snapshot (Washington, DC: annual releases). 2002-2007: U.S. Department of Transportation, Maritime Administration, Office of Policy and Plans, U.S. Water Transportation Statistical Snapshot 2008 (Washington, DC), available at http://www.marad.dot.gov/marad_statistics as of July 2008.