|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Vermiculite, perlite & chlorites, unexpanded | $1,696 | $2,911 | $4,050 | $1,384 | | $4,652 | $61 |
| Kieserite, epsomite (nat. magnesium sulphates) | $4,223 | $841 | $171 | | $22,026 | $31 | |
| Mineral subs., n.e.s. in Ch.25 | $49,877 | $39,465 | $53,124 | $64,399 | $57,893 | $53,626 | $71,563 |
| Total | $55,796 | $43,217 | $57,345 | $65,783 | $79,919 | $58,309 | $71,624 |
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