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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Silver nitrate | $8,513 | $7,258 | $14,261 | $5,070 | $2,889 | $1,398 |
| Silver comps. other than silver nitrate | $6,972 | $2,900 | $14,836 | $2,767 | $3,597 | $6,598 |
| Gold comps. | | | | | $744 | $160 |
| Inorganic/organic comps. of precious metals, whether or not chemically defi ... | $191 | $663 | $1,074 | $2,528 | $1,575 | $963 |
| Total | $15,676 | $10,821 | $30,171 | $10,365 | $8,805 | $9,119 |
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