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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Bentonite | $66,510 | $63,199 | $899,111 | $631,238 | $364,443 | $568,758 |
| Decolourising earths & fuller's earth | $12,743 | $5,315 | | | | |
| Fire-clay | $432 | $1,710 | $1,105 | $27,617 | $2,843 | $32,786 |
| Clays other than expanded clays of 68.06 (excl. of 2507.00 & 2508.10-2508.3 ... | $2,247 | $7,264 | $92,500 | $31,086 | $36,176 | $24,329 |
| Chamotte/dinas earths | | $28,769 | | $7,502 | | $449 |
| Total | $81,932 | $106,257 | $992,716 | $697,443 | $403,462 | $626,322 |
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