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| Commodity | 2005 | 2006 | 2007 |
| Silver nitrate | $9,196 | $399,012 | $8,186 |
| Silver comps. other than silver nitrate | $12,893 | $20,049 | $17,776 |
| Gold comps. | | $595 | $2,503 |
| Inorganic/organic comps. of precious metals, whether or not chemically defi ... | $40 | $370 | $1,708 |
| Total | $22,129 | $420,026 | $30,173 |
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