|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Unrefined copper; copper anodes for electrolytic refining | $2,687,234 | $2,184,998 | $6,074,490 | $2,887,290 | $3,045,918 | $3,038,968 | $4,662,871 |
| Total | $2,687,234 | $2,184,998 | $6,074,490 | $2,887,290 | $3,045,918 | $3,038,968 | $4,662,871 |
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