|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Vermiculite, perlite & chlorites, unexpanded | $521,812 | $757,481 | $824,952 | $1,453,887 | $923,243 | $1,465,624 | $2,325,644 |
| Kieserite, epsomite (nat. magnesium sulphates) | | $11,245 | | | | | $475 |
| Mineral subs., n.e.s. in Ch.25 | $38,262,674 | $41,018,466 | $39,115,673 | $33,516,358 | $26,968,639 | $39,042,416 | $62,986,798 |
| Total | $38,784,486 | $41,787,192 | $39,940,625 | $34,970,245 | $27,891,882 | $40,508,040 | $65,312,917 |
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