Commodity2005200620072008200920102011
Copper waste & scrap$83,108,611$34,603,351$16,412,904$8,727,044$727,538$6,033,557$8,643,997
Total$83,108,611$34,603,351$16,412,904$8,727,044$727,538$6,033,557$8,643,997