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| Commodity | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Colloidal precious metals | | | | $1,989 | $29 | |
| Silver nitrate | $358 | $1,739 | $1,582 | $556 | $4,337 | $2,157 |
| Silver comps. other than silver nitrate | $376 | $6,058 | | | | $2,305 |
| Gold comps. | | $3,748 | $1,726 | | | |
| Inorganic/organic comps. of precious metals, whether or not chemically defi ... | | | $1,832 | $160 | | $819 |
| Total | $734 | $11,545 | $5,140 | $2,705 | $4,366 | $5,281 |
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