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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Base metals clad with silver, not further worked than semi-manufactured | $177,340 | $1,010,862 | $1,388,367 | $928,521 | $578,244 | $550,195 | $876,016 |
| Total | $177,340 | $1,010,862 | $1,388,367 | $928,521 | $578,244 | $550,195 | $876,016 |
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