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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Bentonite | $39,331 | $64,103 | $51,463 | $170,542 | $156,810 | $625,512 |
| Decolourising earths & fuller's earth | $187,238 | $260,124 | $252,763 | | | |
| Fire-clay | $9,854 | $39,817 | $21,796 | $13,545 | $11,637 | $47,323 |
| Clays other than expanded clays of 68.06 (excl. of 2507.00 & 2508.10-2508.3 ... | $305,492 | $412,087 | $605,704 | $834,283 | $1,000,816 | $1,134,649 |
| Andalusite, kyanite & sillimanite | | $27,936 | | | | |
| Mullite | $49 | $84 | | | | $3,156 |
| Chamotte/dinas earths | | | | | | $2,135 |
| Total | $541,964 | $804,151 | $931,726 | $1,018,370 | $1,169,263 | $1,812,775 |
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