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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Bentonite | $125,465 | $352,034 | $212,678 | $334,731 | $598,561 | $602,999 | $614,826 |
| Decolourising earths & fuller's earth | $26,612 | $101,286 | | | | | |
| Fire-clay | $307,052 | $108,532 | $229,897 | $37,385 | $26,474 | $53,877 | $124,202 |
| Clays other than expanded clays of 68.06 (excl. of 2507.00 & 2508.10-2508.3 ... | | $558 | $32,408 | $40,796 | $423,113 | $223,855 | $137,838 |
| Mullite | | $36,824 | $15,490 | $15,894 | | $3,434 | |
| Chamotte/dinas earths | $37,036 | $117,308 | $43,820 | $26,453 | $1,231 | $9,351 | $310 |
| Total | $496,165 | $716,542 | $534,293 | $455,259 | $1,049,379 | $893,516 | $877,176 |
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