Commodity2005200620072008200920102011
Copper waste & scrap$30,775,078$73,827,292$83,817,075$64,290,294$48,881,001$71,844,970$118,036,933
Total$30,775,078$73,827,292$83,817,075$64,290,294$48,881,001$71,844,970$118,036,933