Commodity2005200620072008200920102011
Copper waste & scrap$2,946,437$15,920,997$41,365,679$42,670,024$17,082,500$31,034,285$47,382,320
Total$2,946,437$15,920,997$41,365,679$42,670,024$17,082,500$31,034,285$47,382,320