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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Bentonite | $6,786 | $29,062 | $112,926 | $192,335 | $619,239 | $29,373 | $309,000 |
| Decolourising earths & fuller's earth | $60,449 | $104,620 | $125,288 | $300,687 | $1,169,044 | $4,890 | |
| Fire-clay | $1,765 | $1,425 | $9,671 | $30,292 | $372,870 | $215,709 | $60,000 |
| Clays other than expanded clays of 68.06 (excl. of 2507.00 & 2508.10-2508.3 ... | $12,825 | $2,060 | $34,903 | $4,811 | $51,647 | $172,672 | $131,000 |
| Andalusite, kyanite & sillimanite | | $222,631 | $46,685 | $52,973 | $89,433 | $72,223 | $52,000 |
| Mullite | | | | | $25,759 | $859 | |
| Chamotte/dinas earths | | | $45 | $1,413 | $9,752 | $241 | |
| Total | $81,825 | $359,798 | $329,518 | $582,511 | $2,337,744 | $495,967 | $552,000 |
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