Commodity2005200620072008200920102011
Unwrought prods. of ref. copper (excl. of 7403.11-7403.13) $17,419$22,776$187$2,776  
Copper-tin base alloys (bronze), unwrought$3,905$3,342$12,202$989$2,854$4,078$9,000
Total$3,905$20,761$34,978$1,176$5,630$4,078$9,000