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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Bentonite | $38,576 | $82,202 | $43,973 | $25,661 | $10,033 | $115,387 | $324,711 |
| Decolourising earths & fuller's earth | | $1,380 | | | | | |
| Fire-clay | | | $1,113 | $23 | | $4,610 | $5,023 |
| Clays other than expanded clays of 68.06 (excl. of 2507.00 & 2508.10-2508.3 ... | $1,866 | $17,803 | $64,741 | $4,985 | $7,735 | $109,620 | $68,472 |
| Andalusite, kyanite & sillimanite | $2,697 | | | | | | |
| Chamotte/dinas earths | | $75 | $30 | $37 | $28 | $6 | |
| Total | $43,139 | $101,460 | $109,857 | $30,706 | $17,796 | $229,623 | $398,206 |
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