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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Colloidal precious metals | $87 | $2,254 | $954 | $598 | | | $41 |
| Silver nitrate | $32,141 | $43,781 | $39,461 | $22,886 | $27,945 | $17,244 | $28,072 |
| Silver comps. other than silver nitrate | $10,522 | $12,130 | $154,120 | $2,978 | $28,473 | $1,602 | $12,462 |
| Gold comps. | $30,194 | $1,001 | $16,791 | $1,302 | $58,877 | $9,025 | $1,091 |
| Inorganic/organic comps. of precious metals, whether or not chemically defi ... | $4,999 | $4,272 | $11,742 | $12,172 | $8,500 | $14,373 | $5,214 |
| Total | $77,943 | $63,438 | $223,068 | $39,936 | $123,795 | $42,244 | $46,880 |
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