|
| Commodity | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Silver comps. other than silver nitrate | $871 | | | $80,511 | | |
| Gold comps. | | | | $36,944 | $1,693 | |
| Inorganic/organic comps. of precious metals, whether or not chemically defi ... | $133,577 | $21,148 | $22,499 | $5,382 | | $211 |
| Total | $134,448 | $21,148 | $22,499 | $122,837 | $1,693 | $211 |
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