Commodity2005200620072008200920102011
Copper waste & scrap$16,202,193$29,247,295$38,942,129$37,488,762$35,151,612$54,772,206$76,502,382
Total$16,202,193$29,247,295$38,942,129$37,488,762$35,151,612$54,772,206$76,502,382