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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 | $40,772,449 | $47,722,412 | $44,736,134 | $49,223,428 | $36,369,257 | $56,538,249 | $75,956,663 |
| Total | $40,772,449 | $47,722,412 | $44,736,134 | $49,223,428 | $36,369,257 | $56,538,249 | $75,956,663 |
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