|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Colloidal precious metals | | | | $377 | | |
| Silver nitrate | $204 | $224 | $2,270 | | $461 | |
| Silver comps. other than silver nitrate | $589 | $1,454 | | | $2,720 | $1,511 |
| Gold comps. | | | | | | $900 |
| Inorganic/organic comps. of precious metals, whether or not chemically defi ... | $395 | | $3,953 | $4,690 | $1,005 | $9,702 |
| Total | $1,188 | $1,678 | $6,223 | $5,067 | $4,186 | $12,113 |
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