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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Bentonite | $288,578 | $120,330 | $147,418 | $291,158 | $1,045,978 | $130,556 | $247,021 |
| Decolourising earths & fuller's earth | $370,702 | $892,395 | $692,831 | | | | |
| Fire-clay | | $266 | | | $817 | $153,889 | $981 |
| Clays other than expanded clays of 68.06 (excl. of 2507.00 & 2508.10-2508.3 ... | $34,925 | $72,656 | $25,009 | $85,002 | $36,787 | $37,431 | $839,344 |
| Chamotte/dinas earths | $21,627 | $49,569 | $64,393 | $116,872 | $68,662 | $59,922 | $57,862 |
| Total | $715,832 | $1,135,216 | $929,651 | $493,032 | $1,152,244 | $381,798 | $1,145,208 |
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