Commodity2005200620072008200920102011
Dredgers$76,959$12,405,355$741,524$1,199,048$618,236  
Light-vessels, fire-floats, floating cranes & oth. vessels the navigability ...$352,286$4,022  $870,229$907,150$476,245
Total$429,245$12,409,377$741,524$1,199,048$1,488,465$907,150$476,245