Commodity2005200620072008200920102011
Copper waste & scrap$13,281,049$71,229,398$76,655,183$57,286,378$45,536,227$82,372,096$93,173,233
Total$13,281,049$71,229,398$76,655,183$57,286,378$45,536,227$82,372,096$93,173,233