Commodity2005200620072008200920102011
Copper waste & scrap$6,332,645$11,528,860$10,832,881$11,009,915$12,389,148$20,643,735$23,747,221
Total$6,332,645$11,528,860$10,832,881$11,009,915$12,389,148$20,643,735$23,747,221