Commodity2005200620072008200920102011
Copper waste & scrap$49,745,224$95,344,995$128,778,452$172,692,274$78,478,618$129,725,134$163,824,468
Total$49,745,224$95,344,995$128,778,452$172,692,274$78,478,618$129,725,134$163,824,468