|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Colloidal precious metals | | $598 | $291 | | | |
| Silver nitrate | $1,274 | $6,793 | $59,867 | $5,139 | $10,879 | $8,317 |
| Silver comps. other than silver nitrate | | | $3,381 | $42 | $4,918 | $3,589 |
| Gold comps. | | $546 | $1,113 | $213 | | $1,264 |
| Inorganic/organic comps. of precious metals, whether or not chemically defi ... | | $6,226 | | | $37,194 | $21,717 |
| Total | $1,274 | $14,163 | $64,652 | $5,394 | $52,991 | $34,887 |
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