Commodity2005200620072008200920102011
Copper waste & scrap$3,191,935$24,762,716$34,041,885$28,500,778$24,222,919$38,724,394$45,837,894
Total$3,191,935$24,762,716$34,041,885$28,500,778$24,222,919$38,724,394$45,837,894