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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Bentonite | $18,906 | $24,016 | $15,765 | $26,756 | $32,729 | $33,893 | $9,806 |
| Decolourising earths & fuller's earth | $5,824 | $6,478 | | | | | |
| Fire-clay | $9,677 | $8,185 | $28,101 | $6,423 | $9,426 | $7,850 | $6,416 |
| Clays other than expanded clays of 68.06 (excl. of 2507.00 & 2508.10-2508.3 ... | $331,640 | $195,859 | $138,650 | $93,663 | $28,878 | $26,276 | $188,933 |
| Andalusite, kyanite & sillimanite | | $12,954 | $12,777 | $871 | $413 | $252 | |
| Chamotte/dinas earths | | | $73 | | $1,087 | $821 | $157 |
| Total | $366,047 | $247,492 | $195,366 | $127,713 | $72,533 | $69,092 | $205,312 |
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