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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Bentonite | $31,751 | $220,645 | $84,547 | $215,600 | $98,619 | $235,980 | $293,006 |
| Decolourising earths & fuller's earth | $202,852 | $135,724 | $72,250 | | | | |
| Fire-clay | $16,788 | $20,650 | $19,445 | $33,186 | $17,518 | $44,646 | $19,556 |
| Clays other than expanded clays of 68.06 (excl. of 2507.00 & 2508.10-2508.3 ... | $18,254 | $5,788 | $56,891 | $129,167 | $352,015 | $495,970 | $860,579 |
| Andalusite, kyanite & sillimanite | | | | | $7,382 | | $22,525 |
| Chamotte/dinas earths | | $3,927 | | | $43,825 | | $3,121 |
| Total | $269,645 | $386,734 | $233,133 | $377,953 | $519,359 | $776,596 | $1,198,787 |
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