Commodity2005200620072008200920102011
Copper waste & scrap$9,690,389$28,177,592$27,402,924$21,699,698$11,703,938$28,768,584$38,526,142
Total$9,690,389$28,177,592$27,402,924$21,699,698$11,703,938$28,768,584$38,526,142