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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 | $34,046,168 | $40,216,890 | $43,273,742 | $52,732,221 | $48,760,654 | $59,680,668 | $63,468,080 |
| Total | $34,046,168 | $40,216,890 | $43,273,742 | $52,732,221 | $48,760,654 | $59,680,668 | $63,468,080 |
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