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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Bentonite | $21,522 | $30,508 | $234,931 | $123,673 | $40,040 | $50,283 | $47,856 |
| Decolourising earths & fuller's earth | $993 | $1,455 | $647 | $2,860 | | $97 | $385 |
| Fire-clay | $21,747 | $22,926 | $3,133 | $3,127 | $4,562 | $6,236 | $262,460 |
| Clays other than expanded clays of 68.06 (excl. of 2507.00 & 2508.10-2508.3 ... | $123,189 | $103,990 | $200,756 | $383,096 | $249,427 | $333,686 | $301,782 |
| Andalusite, kyanite & sillimanite | $168 | $630 | $18,030 | $349 | $23 | | $123 |
| Mullite | | $956 | | | | | |
| Chamotte/dinas earths | | $637 | | $2,605 | $19,301 | | |
| Total | $167,619 | $161,102 | $457,497 | $515,710 | $313,353 | $390,302 | $612,606 |
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