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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Bentonite | $1,166,969 | $1,411,991 | $1,063,594 | $942,694 | $1,052,879 | $1,047,167 | $1,514,887 |
| Decolourising earths & fuller's earth | $635 | $963 | | | | | |
| Fire-clay | $29,301 | $34,408 | $330,286 | $300,106 | $347,629 | $179,592 | $10,007 |
| Clays other than expanded clays of 68.06 (excl. of 2507.00 & 2508.10-2508.3 ... | $646,177 | $572,358 | $821,098 | $872,507 | $948,936 | $890,109 | $1,605,802 |
| Chamotte/dinas earths | $2,604 | $861 | $704 | $206 | | $244 | |
| Total | $1,845,686 | $2,020,581 | $2,215,682 | $2,115,513 | $2,349,444 | $2,117,112 | $3,130,696 |
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