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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Bentonite | $398 | $3,400 | $268,274 | $285,069 | $291,514 | $246,497 | $710,158 |
| Decolourising earths & fuller's earth | $1,405 | $10,356 | | | | | |
| Fire-clay | $57,918 | $9,606 | $2,698 | $18,179 | $12,246 | $8,965 | $4,177 |
| Clays other than expanded clays of 68.06 (excl. of 2507.00 & 2508.10-2508.3 ... | $2,614 | $57,184 | $109,303 | $47,930 | $177,739 | $178,889 | $268,855 |
| Mullite | | | | $268 | | | |
| Chamotte/dinas earths | $3,551 | $38,395 | $38,124 | $43,920 | $15,347 | $16,300 | $10,852 |
| Total | $65,886 | $118,941 | $418,399 | $395,366 | $496,846 | $450,651 | $994,042 |
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