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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Bentonite | $13,832 | $24,480 | $51,584 | $44,043 | $52,686 | $23,193 | $41,262 |
| Decolourising earths & fuller's earth | $15,705 | $19,120 | | | | | |
| Fire-clay | $17,158 | | $1,592 | $3,886 | | | $70 |
| Clays other than expanded clays of 68.06 (excl. of 2507.00 & 2508.10-2508.3 ... | $3,909 | | $24,748 | $10,234 | $1,841 | $147,358 | $2,645 |
| Andalusite, kyanite & sillimanite | | | | | $436 | $703 | $1,068 |
| Chamotte/dinas earths | | | | | | | $1 |
| Total | $50,604 | $43,600 | $77,924 | $58,163 | $54,963 | $171,254 | $45,046 |
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