| Age in years** | Number of vessels |
|---|---|
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
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Source
Sources
Release date
November 2011
More information
Region
United States
Survey time period
2010
Supplementary notes
Vessel includes self-propelled vessels and barges.
* Survey date as of December 31, 2010. Includes updates through October 19, 2011.
** Age (in years) is based upon the year the vessel was built or rebuilt, using calendar year 2010 as the base year.
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