Commodity2005200620072008200920102011
Copper waste & scrap$13,370,433$37,574,907$47,391,790$47,809,514$39,888,191$69,625,046$143,222,100
Total$13,370,433$37,574,907$47,391,790$47,809,514$39,888,191$69,625,046$143,222,100