|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Bentonite | | | | $86 | | |
| Fire-clay | | $2,715 | $258 | $1,832 | $583 | $6,942 |
| Clays other than expanded clays of 68.06 (excl. of 2507.00 & 2508.10-2508.3 ... | $51,623 | $25,845 | $55,114 | $69,464 | $229,117 | $871,869 |
| Andalusite, kyanite & sillimanite | $35,702 | $15,075 | | | | |
| Total | $87,325 | $43,635 | $55,372 | $71,382 | $229,700 | $878,811 |
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