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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Bentonite | $700,381 | $1,229,318 | $1,323,001 | $1,473,310 | $837,968 | $2,431,368 | $2,907,537 |
| Decolourising earths & fuller's earth | $57 | $3,450 | $972 | | | | |
| Fire-clay | $1,054 | $23,629 | $11,841 | $57,754 | $18,122 | $25,475 | $52,588 |
| Clays other than expanded clays of 68.06 (excl. of 2507.00 & 2508.10-2508.3 ... | $276,472 | $451,341 | $467,347 | $709,348 | $713,922 | $716,604 | $695,527 |
| Andalusite, kyanite & sillimanite | | | | $4,822 | $3,358 | $7,983 | |
| Mullite | $1,483 | $17,395 | $318,649 | $156,401 | $19,750 | $31,351 | $35,725 |
| Chamotte/dinas earths | $7,380 | $30,310 | $68,010 | $117,888 | $71,991 | $222,865 | $200,618 |
| Total | $986,827 | $1,755,443 | $2,189,820 | $2,519,523 | $1,665,111 | $3,435,646 | $3,891,995 |
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