Commodity2005200620072008200920102011
Copper waste & scrap$4,831,855$7,902,138$5,998,278$6,003,399$8,511,840$19,632,840$24,608,083
Total$4,831,855$7,902,138$5,998,278$6,003,399$8,511,840$19,632,840$24,608,083