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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Bentonite | $66,868 | $24,292 | $37,506 | $34,564 | $77,128 | $4,115 | $66,563 |
| Decolourising earths & fuller's earth | $29,106 | | | | | | |
| Fire-clay | $12,538 | $4,494 | $40,632 | $41,228 | $591 | $18,790 | |
| Clays other than expanded clays of 68.06 (excl. of 2507.00 & 2508.10-2508.3 ... | $3,692 | $72,343 | $51 | $6,028 | $593 | $70 | $203 |
| Chamotte/dinas earths | | $91 | | $6,706 | $2,373 | $8,748 | $4,300 |
| Total | $112,204 | $101,220 | $78,189 | $88,526 | $80,685 | $31,723 | $71,066 |
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