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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Bentonite | $45,808 | $76,112 | $90,314 | $377,908 | $92,623 | $60,584 |
| Decolourising earths & fuller's earth | $191,084 | $47,334 | | | | |
| Fire-clay | $244 | $41 | $12,706 | $447 | | $4,207 |
| Clays other than expanded clays of 68.06 (excl. of 2507.00 & 2508.10-2508.3 ... | $3,488 | $3,263 | $143,277 | $115,315 | $29,867 | $2,082 |
| Andalusite, kyanite & sillimanite | | | | $13 | | |
| Chamotte/dinas earths | | | | $266 | | |
| Total | $240,624 | $126,750 | $246,297 | $493,949 | $122,490 | $66,873 |
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