Commodity2005200620072008200920102011
Copper waste & scrap$3,457,875$5,690,321$4,350,076$2,469,293$3,419,337$6,239,858$9,985,394
Total$3,457,875$5,690,321$4,350,076$2,469,293$3,419,337$6,239,858$9,985,394