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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Bentonite | $41,697 | $7,688 | $3,690 | $1,591 | | $52,548 | $23,792 |
| Decolourising earths & fuller's earth | | $3,530 | | | | | |
| Fire-clay | | | | | | | $8,248 |
| Clays other than expanded clays of 68.06 (excl. of 2507.00 & 2508.10-2508.3 ... | | | | | | | $29,506 |
| Chamotte/dinas earths | $28,718 | $20,600 | $47,033 | $15,870 | $28,342 | $3,790 | $25,268 |
| Total | $70,415 | $31,818 | $50,723 | $17,461 | $28,342 | $56,338 | $86,814 |
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