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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 ... | $1,759,907 | $693,674 | $1,807,127 | $2,437,843 | $1,172,024 | $1,452,761 | $705,943 |
| Total | $1,759,907 | $693,674 | $1,807,127 | $2,437,843 | $1,172,024 | $1,452,761 | $705,943 |
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