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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Vermiculite, perlite & chlorites, unexpanded | $36,535,380 | $33,691,861 | $30,677,554 | $38,642,321 | $38,452,467 | $48,759,328 | $55,593,480 |
| Kieserite, epsomite (nat. magnesium sulphates) | $38,805 | $175,944 | $152,936 | $78,649 | $30,291 | $39,727 | $239,604 |
| Mineral subs., n.e.s. in Ch.25 | $765,513 | $1,463,898 | $53,840 | $8,562 | $339 | $2,895 | $3,452 |
| Total | $37,339,698 | $35,331,703 | $30,884,330 | $38,729,532 | $38,483,097 | $48,801,950 | $55,836,536 |
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