|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Bentonite | $999,908 | $1,328,399 | $1,885,678 | $2,299,267 | $3,755,795 | $5,785,895 | $8,437,206 |
| Fire-clay | | $200 | | $300 | | | |
| Clays other than expanded clays of 68.06 (excl. of 2507.00 & 2508.10-2508.3 ... | $10 | $15,000 | $1,720 | | $102,067 | $44,803 | $20,788 |
| Total | $999,918 | $1,343,599 | $1,887,398 | $2,299,567 | $3,857,862 | $5,830,698 | $8,457,994 |
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