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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Bentonite | $50,700 | $39,020 | $68,217 | $34,207 | $494,283 | $354,044 | $357,162 |
| Decolourising earths & fuller's earth | $1,980 | | | | | | |
| Fire-clay | $55,440 | $164 | $5,713 | $5,371 | $1,146 | | |
| Clays other than expanded clays of 68.06 (excl. of 2507.00 & 2508.10-2508.3 ... | $175,780 | $181,722 | $128,704 | $75,316 | $125,069 | $129,405 | $165,052 |
| Andalusite, kyanite & sillimanite | | | $32,913 | $17,900 | | | |
| Chamotte/dinas earths | $10,060 | $144 | $11 | | $14 | | |
| Total | $293,960 | $221,050 | $235,558 | $132,794 | $620,512 | $483,449 | $522,214 |
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