|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Colloidal precious metals | $310 | | $792 | $400 | | $5,422 | $298 |
| Silver nitrate | $2,420 | $7,972 | $7,859 | $3,717 | $17,678 | $3,886 | $12,952 |
| Silver comps. other than silver nitrate | $3,220 | $2,464 | $388 | $5,478 | $222 | $1,760 | |
| Gold comps. | | $503 | | $1,215 | $10,292 | | |
| Inorganic/organic comps. of precious metals, whether or not chemically defi ... | $180 | $382 | $125 | $816 | $378 | $152 | |
| Total | $6,130 | $11,321 | $9,164 | $11,626 | $28,570 | $11,220 | $13,250 |
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