Commodity2005200620072008200920102011
Copper waste & scrap$3,900,316$5,638,075$1,863,180$11,531,612$5,277,921$10,381,118$138,773
Total$3,900,316$5,638,075$1,863,180$11,531,612$5,277,921$10,381,118$138,773