|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Bentonite | $91,357 | $301,700 | $238,305 | $345,854 | $683,734 | $2,926,752 | $850,364 |
| Fire-clay | | | | $75,941 | | | $391 |
| Clays other than expanded clays of 68.06 (excl. of 2507.00 & 2508.10-2508.3 ... | $7,876 | $26,463 | $122,835 | $55,476 | $209,246 | $84,808 | $21,040 |
| Chamotte/dinas earths | | $1,673 | | | $3,057 | $17,943 | |
| Total | $99,233 | $329,836 | $361,140 | $477,271 | $896,037 | $3,029,503 | $871,795 |
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