Commodity2005200620072008200920102011
Copper waste & scrap$1,961,800$6,001,463$7,161,944$4,846,003$2,840,008$4,553,406$4,402,830
Total$1,961,800$6,001,463$7,161,944$4,846,003$2,840,008$4,553,406$4,402,830