Commodity2005200620072008200920102011
Copper waste & scrap$29,216,474$54,796,842$57,980,072$55,029,174$43,105,405$89,393,466$140,897,782
Total$29,216,474$54,796,842$57,980,072$55,029,174$43,105,405$89,393,466$140,897,782