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| Commodity | 2005 | 2006 | 2007 | 2009 | 2011 |
| Silver nitrate | $403,938 | $792,222 | $739,193 | $823,218 | $3,561,811 |
| Silver comps. other than silver nitrate | $308,332 | $361,357 | $257,467 | $407,840 | $941,829 |
| Gold comps. | $230 | | | | |
| Inorganic/organic comps. of precious metals, whether or not chemically defi ... | | | | | $9,736 |
| Total | $712,500 | $1,153,579 | $996,660 | $1,231,058 | $4,513,376 |
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