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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Silver nitrate | $2,022 | $3,477 | $5,510 | $3,228 | $2,878 | $8,369 | $8,417 |
| Silver comps. other than silver nitrate | $694 | | $3,341 | $574 | $468 | $109 | $346 |
| Gold comps. | $5,349 | $14,639 | $9,265 | $11,047 | $382 | | $1,266 |
| Inorganic/organic comps. of precious metals, whether or not chemically defi ... | $289 | $706 | | $476 | | $244 | $4,360 |
| Total | $8,354 | $18,822 | $18,116 | $15,325 | $3,728 | $8,722 | $14,389 |
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