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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Colloidal precious metals | $329 | $1,265 | $69 | $5,532 | $705 | $215 | $26,833 |
| Silver nitrate | $9,634 | $16,904 | $21,300 | $40,110 | $37,769 | $42,102 | $94,406 |
| Silver comps. other than silver nitrate | $46,182 | $124,107 | $107,089 | $171,140 | $100,400 | $237,307 | $240,539 |
| Gold comps. | $4,496 | $5,464 | $1,300 | $15,666 | $7,210 | $4,984 | $16,244 |
| Inorganic/organic comps. of precious metals, whether or not chemically defi ... | $151,312 | $113,294 | $194,730 | $271,363 | $200,482 | $298,375 | $445,556 |
| Total | $211,953 | $261,034 | $324,488 | $503,811 | $346,566 | $582,983 | $823,578 |
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