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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 | $5,518,113 | $6,762,894 | $7,171,974 | $10,468,996 | $8,474,979 | $7,410,547 | $10,614,783 |
| Total | $5,518,113 | $6,762,894 | $7,171,974 | $10,468,996 | $8,474,979 | $7,410,547 | $10,614,783 |
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