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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Bentonite | $140,567 | $274,537 | $501,327 | $412,246 | $147,260 | $178,158 |
| Decolourising earths & fuller's earth | | $792 | | | | |
| Fire-clay | $3,635 | | $15,627 | $143 | $72,266 | $2,464 |
| Clays other than expanded clays of 68.06 (excl. of 2507.00 & 2508.10-2508.3 ... | $79,939 | $86,604 | $141,621 | $301,100 | $63,558 | $196,123 |
| Chamotte/dinas earths | $812 | $9,866 | $1,449 | $5,231 | $2,922 | $50,981 |
| Total | $224,953 | $371,799 | $660,024 | $718,720 | $286,006 | $427,726 |
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