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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 | $2,020,553 | $3,763,919 | $2,182,993 | $826,748 | $247,592 | $1,017,794 | $1,990,181 |
| Total | $2,020,553 | $3,763,919 | $2,182,993 | $826,748 | $247,592 | $1,017,794 | $1,990,181 |
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