Commodity2005200620072008200920102011
Copper waste & scrap$10,998,488$18,107,056$23,292,756$22,036,098$16,692,755$25,578,939$28,950,528
Total$10,998,488$18,107,056$23,292,756$22,036,098$16,692,755$25,578,939$28,950,528