Commodity2005200620072008200920102011
Copper waste & scrap$3,790,632$5,425,088$7,387,038$4,699,248$4,423,075$7,019,310$5,821,820
Total$3,790,632$5,425,088$7,387,038$4,699,248$4,423,075$7,019,310$5,821,820