|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Vermiculite, perlite & chlorites, unexpanded | $2,420 | | | | | | |
| Kieserite, epsomite (nat. magnesium sulphates) | | | $2,400 | | | | |
| Mineral subs., n.e.s. in Ch.25 | $37,980 | $32,775 | $114,360 | $87,944 | $21,394 | $6,774 | $25,961 |
| Total | $40,400 | $32,775 | $116,760 | $87,944 | $21,394 | $6,774 | $25,961 |
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