Commodity2005200620072008200920102011
Copper waste & scrap$19,128,850$49,516,889$63,576,639$58,886,330$37,411,571$65,874,220$80,461,419
Total$19,128,850$49,516,889$63,576,639$58,886,330$37,411,571$65,874,220$80,461,419