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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Colloidal precious metals | | | | $26 | | $4,696 | |
| Silver nitrate | $6,226 | $13,675 | $44,619 | $25,482 | $35,957 | $15,589 | $16,333 |
| Silver comps. other than silver nitrate | $54,212 | $1,693 | $22,181 | $27 | $2,762 | $10,815 | $1,788 |
| Gold comps. | | $15,416 | | $650 | $623 | $2,998 | $3,723 |
| Inorganic/organic comps. of precious metals, whether or not chemically defi ... | $11,868 | $9,151 | $5,095 | | $2,893 | $788 | $1,666 |
| Total | $72,306 | $39,935 | $71,895 | $26,185 | $42,235 | $34,886 | $23,510 |
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