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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 | $7,311,385 | $11,633,379 | $9,543,730 | $12,390,150 | $10,790,951 | $19,350,991 | $18,082,852 |
| Total | $7,311,385 | $11,633,379 | $9,543,730 | $12,390,150 | $10,790,951 | $19,350,991 | $18,082,852 |
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