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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Silver nitrate | $3,873 | $11,698 | $10,275 | $38,874 | $5,794 | $18,449 | $33,768 |
| Silver comps. other than silver nitrate | $4,188 | $2,155 | $22,814 | $2,969 | | | $8,151 |
| Gold comps. | | | | | | $5,183 | |
| Inorganic/organic comps. of precious metals, whether or not chemically defi ... | $86,453 | $50,000 | | $163,218 | $87,455 | $2,492 | $139,948 |
| Total | $94,514 | $63,853 | $33,089 | $205,061 | $93,249 | $26,124 | $181,867 |
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