Commodity200520062007200920102011
Dredgers$31,000$16,925,000    
Light-vessels, fire-floats, floating cranes & oth. vessels the navigability ...$72,000$30,000$463,822$30,000$291,707$405,000
Total$103,000$16,955,000$463,822$30,000$291,707$405,000