Commodity2005200620072008200920102011
Dredgers$25,912 $305,866$510,996 $176,742$523,397
Light-vessels, fire-floats, floating cranes & oth. vessels the navigability ... $1,495,271$149,325 $413,585$195,313$3,984,707
Total$25,912$1,495,271$455,191$510,996$413,585$372,055$4,508,104