|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Bentonite | $470 | $21,125 | $45,224 | $162,627 | $96,641 | $27,911 |
| Fire-clay | $1,020 | | | | | |
| Clays other than expanded clays of 68.06 (excl. of 2507.00 & 2508.10-2508.3 ... | $4,281 | $13,962 | $5,601 | $20,106 | $3,563 | $4,098 |
| Chamotte/dinas earths | | | | | $12,171 | |
| Total | $5,771 | $35,087 | $50,825 | $182,733 | $112,375 | $32,009 |
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