|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Base metals clad with silver, not further worked than semi-manufactured | $495,000 | $1,586,000 | $910,000 | $386,000 | $257,000 | $2,382,000 | $2,225,000 |
| Total | $495,000 | $1,586,000 | $910,000 | $386,000 | $257,000 | $2,382,000 | $2,225,000 |
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