Commodity2005200620072008200920102011
Copper waste & scrap$4,514,928$4,644,629$20,637,950$29,170,661$2,820,296$9,472,759$40,551,023
Total$4,514,928$4,644,629$20,637,950$29,170,661$2,820,296$9,472,759$40,551,023