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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Bentonite | $89,522 | $35,597 | $79,764 | $2,244 | $27,484 | $182,499 | $40,712 |
| Decolourising earths & fuller's earth | $749 | | | | | | |
| Fire-clay | $127,191 | $243,985 | $174,091 | $246,726 | $104,851 | $31,656 | $61,259 |
| Clays other than expanded clays of 68.06 (excl. of 2507.00 & 2508.10-2508.3 ... | $13,556 | $16,904 | $20,258 | $51,534 | $15,333 | $18,548 | $33,606 |
| Chamotte/dinas earths | $2,426 | $13,850 | $17,330 | $21,705 | | | |
| Total | $233,444 | $310,336 | $291,443 | $322,209 | $147,668 | $232,703 | $135,577 |
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