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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Silver nitrate | $711 | $487 | $4,621 | $2,927 | $1,300 | $2,629 | $8,360 |
| Silver comps. other than silver nitrate | $119 | | $2,395 | $2,299 | $857 | $5,087 | $4,472 |
| Gold comps. | $1,887 | $1,473 | $313 | | | | |
| Inorganic/organic comps. of precious metals, whether or not chemically defi ... | $4,048 | $33,529 | $11,999 | $5,800 | $1,896 | $9,691 | $51,980 |
| Total | $6,765 | $35,489 | $19,328 | $11,026 | $4,053 | $17,407 | $64,812 |
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