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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Bentonite | $3,739 | $960 | $34,792 | $170,857 | $118,919 | $82,980 | $148,012 |
| Decolourising earths & fuller's earth | $5,527 | $19,307 | | | | | |
| Fire-clay | $16,958 | $28,761 | $13,984 | $47,928 | $6,050 | $4,739 | $6,953 |
| Clays other than expanded clays of 68.06 (excl. of 2507.00 & 2508.10-2508.3 ... | $193 | $2,116 | $10,371 | $17,914 | $2,059 | $1,348 | $1,293 |
| Andalusite, kyanite & sillimanite | | | $3,741 | | | | |
| Chamotte/dinas earths | $962 | $169 | $21 | | | | $87 |
| Total | $27,379 | $51,313 | $62,909 | $236,699 | $127,028 | $89,067 | $156,345 |
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