|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Silver nitrate | | $164 | $592 | $2,816 | $3,029 | $470 | $7,768 |
| Silver comps. other than silver nitrate | $354 | | | | $1,780 | | $28,013 |
| Gold comps. | | | | | | $2,420 | |
| Inorganic/organic comps. of precious metals, whether or not chemically defi ... | $43,433 | $89,775 | $57,347 | $171,685 | | $54,530 | |
| Total | $43,787 | $89,939 | $57,939 | $174,501 | $4,809 | $57,420 | $35,781 |
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