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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 | $11,126,205 | $12,564,686 | $13,804,532 | $19,053,495 | $13,485,385 | $17,699,513 | $26,003,200 |
| Total | $11,126,205 | $12,564,686 | $13,804,532 | $19,053,495 | $13,485,385 | $17,699,513 | $26,003,200 |
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