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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 | $33,815,873 | $40,475,475 | $41,362,926 | $53,695,350 | $44,640,683 | $60,624,614 | $69,177,295 |
| Total | $33,815,873 | $40,475,475 | $41,362,926 | $53,695,350 | $44,640,683 | $60,624,614 | $69,177,295 |
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