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| Commodity | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Bentonite | $34,517 | $33,658 | $34,453 | $13,427 | $18,706 | $41,279 |
| Decolourising earths & fuller's earth | $793 | | | | | |
| Fire-clay | $1,250 | | $753 | | | |
| Clays other than expanded clays of 68.06 (excl. of 2507.00 & 2508.10-2508.3 ... | $4,998 | $4,135 | $8,336 | $4,319 | $19,979 | $6,971 |
| Chamotte/dinas earths | $3,101 | $7,763 | $1,708 | $1,428 | $2,390 | $54 |
| Total | $44,659 | $45,556 | $45,250 | $19,174 | $41,075 | $48,304 |
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