Commodity2005200620072008200920102011
Unwrought prods. of ref. copper (excl. of 7403.11-7403.13)$70,744      
Copper-zinc base alloys (brass), unwrought$50,959$93,260$1,034,158$545,356$10,131  
Copper-tin base alloys (bronze), unwrought$48,344$190,835$242,774$402,944$24,779$3,919,168$9,505
Copper-nickel base alloys (cupro-nickel)/copper-nickel-zinc base alloys (ni ...  $59,997    
Total$170,047$284,095$1,336,929$948,300$34,910$3,919,168$9,505