Commodity2005200620072008200920102011
Copper waste & scrap$24,517,381$33,537,627$40,838,378$31,145,764$11,282,965$34,905,499$31,153,030
Total$24,517,381$33,537,627$40,838,378$31,145,764$11,282,965$34,905,499$31,153,030