|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2011 |
| Bentonite | $15,951 | | $23,888 | $18,891 | $814 | $1,063 |
| Fire-clay | $1,026 | | | | $339 | $51,523 |
| Clays other than expanded clays of 68.06 (excl. of 2507.00 & 2508.10-2508.3 ... | | $4,540 | $100 | $8,347 | $18 | $880 |
| Chamotte/dinas earths | | | $4,058 | | | |
| Total | $16,977 | $4,540 | $28,046 | $27,238 | $1,171 | $53,466 |
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