Commodity2005200620072008200920102011
Copper waste & scrap$14,813,115$33,824,396$33,999,955$40,042,423$20,034,579$33,043,648$26,440,658
Total$14,813,115$33,824,396$33,999,955$40,042,423$20,034,579$33,043,648$26,440,658