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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Bentonite | $48,261 | $78,320 | $344,433 | $219,255 | $292,390 | $264,408 | $229,881 |
| Decolourising earths & fuller's earth | | $10,185 | | | | | |
| Fire-clay | $2,373 | $2,524 | $18,006 | $85,927 | $37,472 | $12,706 | $48,971 |
| Clays other than expanded clays of 68.06 (excl. of 2507.00 & 2508.10-2508.3 ... | $973 | $46,804 | $80,077 | $387,661 | $284,270 | $150,558 | $213,618 |
| Andalusite, kyanite & sillimanite | | | $1,438 | $2,312 | | | |
| Mullite | | | | $2,742 | | | |
| Chamotte/dinas earths | $162 | | | | | $8 | $806 |
| Total | $51,769 | $137,833 | $443,954 | $697,897 | $614,132 | $427,680 | $493,276 |
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