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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Silver comps. other than silver nitrate | $658,167 | $329,325 | $2 | $81,514 | $5,058,509 | $2,225 |
| Inorganic/organic comps. of precious metals, whether or not chemically defi ... | | | $11,065 | | | |
| Total | $658,167 | $329,325 | $11,067 | $81,514 | $5,058,509 | $2,225 |
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