|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Vermiculite, perlite & chlorites, unexpanded | | | $2,612 | | | $7,085 | |
| Kieserite, epsomite (nat. magnesium sulphates) | | | | | $353 | | |
| Mineral subs., n.e.s. in Ch.25 | $22,234 | $6,004 | $10,239 | $894 | $7,172 | $43,244 | $32,882 |
| Total | $22,234 | $6,004 | $12,851 | $894 | $7,525 | $50,329 | $32,882 |
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