|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 |
| Colloidal precious metals | | | | | $6,752 |
| Silver nitrate | $14,849 | $4,474 | $3,618 | $10,081 | $10,606 |
| Silver comps. other than silver nitrate | | | $4,011 | | |
| Inorganic/organic comps. of precious metals, whether or not chemically defi ... | $361 | $4,203 | | | |
| Total | $15,210 | $8,677 | $7,629 | $10,081 | $17,358 |
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