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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Ion-exchangers based on polymers of 39.01-39.13, in primary forms | $1,326,414 | $2,781,768 | $653,040 | $1,438,887 | $958,646 | $1,835,511 | $2,893,179 |
| Total | $1,326,414 | $2,781,768 | $653,040 | $1,438,887 | $958,646 | $1,835,511 | $2,893,179 |
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