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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Base metals clad with silver, not further worked than semi-manufactured | $2,112,954 | $1,252,591 | $767,941 | $887,440 | $423,603 | $414,395 | $1,684,672 |
| Total | $2,112,954 | $1,252,591 | $767,941 | $887,440 | $423,603 | $414,395 | $1,684,672 |
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