Commodity2005200620072008200920102011
Copper mattes$65,031,782$113,469,746$166,698,447$149,723,882$96,141,433$172,588,231$204,396,515
Total$65,031,782$113,469,746$166,698,447$149,723,882$96,141,433$172,588,231$204,396,515