56 U.S.-Flag Lakers In Service On May 1
The major U.S.-flag Great Lakes operators had 56 vessels in service on May 1, the same as a year ago, and a slight decrease from the 5-year average for May 1.
Vessel Utilization Rates :
U.S.-Flag Great Lakes Fleet
May 1, 2000-2004 and 5-Year Average
| Year | Dry-Bulk Carriers | Cement Carriers | Tankers | Total |
| 2000 | 49 | 6 | 7 | 62 |
| 2001 | 48 | 5 | 3 | 56 |
| 2002 | 43 | 4 | 5 | 52 |
| 2003 | 45 | 5 | 6 | 56 |
| 2004 | 46 | 5 | 5 | 56 |
| 5-Year Average | 47 | 5 | 6 | 58 |
