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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Silver nitrate | | $7,688 | $1,994 | $14,034 | $4,413 | $7,528 |
| Silver comps. other than silver nitrate | | | $52 | | $186 | $438 |
| Inorganic/organic comps. of precious metals, whether or not chemically defi ... | $50 | $286 | $55 | $3,026 | $1,121 | $329 |
| Total | $50 | $7,974 | $2,101 | $17,060 | $5,720 | $8,295 |
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