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| Commodity | 2005 | 2007 | 2008 |
| Colloidal precious metals | $54,353 | $13,883 | $100,381 |
| Silver nitrate | $4,661 | $2,185 | $4,715 |
| Silver comps. other than silver nitrate | $50,120 | $30,101 | $151,318 |
| Gold comps. | $3,716 | $16,000 | |
| Inorganic/organic comps. of precious metals, whether or not chemically defi ... | $136,287 | $810,084 | $2,993,071 |
| Total | $249,137 | $872,253 | $3,249,485 |
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