Commodity2005200620072008200920102011
Copper waste & scrap$15,662,269$53,032,900$46,899,898$39,489,344$24,428,524$49,155,258$57,387,465
Total$15,662,269$53,032,900$46,899,898$39,489,344$24,428,524$49,155,258$57,387,465