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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Vermiculite, perlite & chlorites, unexpanded | $1,432,692 | $1,818,473 | $1,591,133 | $1,801,383 | $1,458,578 | $2,116,583 | $2,316,334 |
| Kieserite, epsomite (nat. magnesium sulphates) | | $230,100 | $1,001,773 | $2,247,710 | $1,286,948 | $1,765,729 | $2,453,370 |
| Mineral subs., n.e.s. in Ch.25 | $6,647,008 | $8,347,048 | $8,507,389 | $13,444,131 | $12,387,599 | $22,664,492 | $40,437,182 |
| Total | $8,079,700 | $10,395,621 | $11,100,295 | $17,493,224 | $15,133,125 | $26,546,804 | $45,206,886 |
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