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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Bentonite | $39,943 | $48,202 | $44,645 | $41,698 | $60,517 | $62,374 | $79,257 |
| Decolourising earths & fuller's earth | | | $1,739 | $26 | | | |
| Fire-clay | $3,017 | $2,576 | $3,038 | | $6,151 | $10,687 | $3,865 |
| Clays other than expanded clays of 68.06 (excl. of 2507.00 & 2508.10-2508.3 ... | $27,669 | $36,045 | $23,727 | $58,445 | $24,946 | $22,295 | $17,481 |
| Chamotte/dinas earths | $1,352 | | $56 | $1,677 | $2,200 | $1,928 | |
| Total | $71,981 | $86,823 | $73,205 | $101,846 | $93,814 | $97,284 | $100,603 |
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