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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 |
| Bentonite | $701,974 | $723,307 | $310,883 | $1,467,614 | $1,248,414 |
| Decolourising earths & fuller's earth | $35,252 | $129,172 | $102,476 | $414,462 | $355,345 |
| Fire-clay | $2,766 | | | | $11,111 |
| Clays other than expanded clays of 68.06 (excl. of 2507.00 & 2508.10-2508.3 ... | $728,193 | $222,278 | $349,583 | $298,708 | $312,303 |
| Mullite | | | $109,211 | | |
| Chamotte/dinas earths | $26 | | | $4,107 | $153 |
| Total | $1,468,211 | $1,074,757 | $872,153 | $2,184,891 | $1,927,326 |
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