Commodity2005200620072008200920102011
Copper waste & scrap$13,186,449$35,166,468$38,968,402$41,060,090$27,459,948$50,484,374$56,836,715
Total$13,186,449$35,166,468$38,968,402$41,060,090$27,459,948$50,484,374$56,836,715