Commodity2005200820092010
Unwrought prods. of ref. copper (excl. of 7403.11-7403.13)$64 $40 
Copper-zinc base alloys (brass), unwrought $2,674$899$1,963
Copper-tin base alloys (bronze), unwrought   $3,452
Total$64$2,674$939$5,415