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| Commodity | 2006 | 2007 | 2008 |
| Colloidal precious metals | $313,658 | $10,844 | $26 |
| Silver nitrate | $13,715 | $2,967 | $13,717 |
| Silver comps. other than silver nitrate | $22,969 | $1,519 | |
| Gold comps. | $14,491 | $20,455 | $1,045 |
| Inorganic/organic comps. of precious metals, whether or not chemically defi ... | | $7,383 | $22,613 |
| Total | $364,833 | $43,168 | $37,401 |
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