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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Vermiculite, perlite & chlorites, unexpanded | $1,447,423 | $1,607,665 | $2,395,253 | $1,564,193 | $1,941,188 | $1,583,775 | $4,049,377 |
| Kieserite, epsomite (nat. magnesium sulphates) | $10,273 | $21,091 | $24,124 | $22,473 | $24,062 | $8,639 | $23,381 |
| Mineral subs., n.e.s. in Ch.25 | $1,792,031 | $2,058,017 | $2,469,253 | $2,537,844 | $1,954,608 | $1,772,035 | $1,810,429 |
| Total | $3,249,727 | $3,686,773 | $4,888,630 | $4,124,510 | $3,919,858 | $3,364,449 | $5,883,187 |
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