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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 | $10,242,032 | $10,571,376 | $14,182,707 | $14,252,429 | $7,867,076 | $14,109,306 | $15,980,317 |
| Total | $10,242,032 | $10,571,376 | $14,182,707 | $14,252,429 | $7,867,076 | $14,109,306 | $15,980,317 |
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