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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Base metals/silver/gold, clad with platinum, not further worked than semi-m ... | $94,166 | $519,321 | $232,909 | $81,493 | $106,444 | $121,807 | $193,332 |
| Total | $94,166 | $519,321 | $232,909 | $81,493 | $106,444 | $121,807 | $193,332 |
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