Commodity2005200620072008200920102011
Copper waste & scrap$22,982,537$33,659,951$35,332,372$35,670,557$20,966,781$35,185,877$87,117,912
Total$22,982,537$33,659,951$35,332,372$35,670,557$20,966,781$35,185,877$87,117,912