Commodity2005200620072008200920102011
Copper waste & scrap$5,936,702$1,674,511$16,007,963$25,756,422$21,779,267$29,513,075$40,587,989
Total$5,936,702$1,674,511$16,007,963$25,756,422$21,779,267$29,513,075$40,587,989