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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Colloidal precious metals | | | | $453 | $5,400 | $546 | |
| Silver nitrate | $8,869 | $5,241 | $9,535 | $80,912 | $124,556 | $191,361 | $83,856 |
| Silver comps. other than silver nitrate | $628 | $106,214 | $67,818 | $977 | $109,811 | $133,552 | $12,688 |
| Gold comps. | $487 | $16,061 | $24,099 | $19,599 | $33,931 | $24,155 | $38,491 |
| Inorganic/organic comps. of precious metals, whether or not chemically defi ... | $15,683 | $18,569 | $20,305 | $64,955 | $15,909 | $22,055 | $54,740 |
| Total | $25,667 | $146,085 | $121,757 | $166,896 | $289,607 | $371,669 | $189,775 |
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