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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 | $9,196,264 | $11,406,218 | $9,433,971 | $12,363,349 | $10,034,729 | $13,161,470 | $12,640,019 |
| Total | $9,196,264 | $11,406,218 | $9,433,971 | $12,363,349 | $10,034,729 | $13,161,470 | $12,640,019 |
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