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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 | $35,611,092 | $40,291,784 | $48,407,592 | $51,442,486 | $48,554,893 | $37,047,068 | $44,126,280 |
| Total | $35,611,092 | $40,291,784 | $48,407,592 | $51,442,486 | $48,554,893 | $37,047,068 | $44,126,280 |
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