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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Silver nitrate | $4,650 | $7,091 | $11,370 | $5,500 | $10,763 | $4,681 | $7,210 |
| Silver comps. other than silver nitrate | $393 | | $1,287 | $7,594 | $1,062 | $1,376 | $3,656 |
| Gold comps. | | $14,340 | $23,158 | $18,938 | $32,901 | $13,987 | $38,155 |
| Inorganic/organic comps. of precious metals, whether or not chemically defi ... | $1,318,002 | $2,071,710 | $2,048,117 | $1,087,178 | $1,413,891 | $2,670,266 | $2,452,063 |
| Total | $1,323,045 | $2,093,141 | $2,083,932 | $1,119,210 | $1,458,617 | $2,690,310 | $2,501,084 |
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