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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Vermiculite, perlite & chlorites, unexpanded | $1,975,665 | $2,456,544 | $2,045,270 | $1,243,386 | $823,497 | $282,873 | $810,058 |
| Kieserite, epsomite (nat. magnesium sulphates) | $93,651 | $889,707 | $462,472 | $189,174 | $306,885 | $252,958 | $155,552 |
| Mineral subs., n.e.s. in Ch.25 | $1,712,492 | $2,150,908 | $4,470,238 | $3,261,698 | $2,265,282 | $3,086,554 | $2,014,308 |
| Total | $3,781,808 | $5,497,159 | $6,977,980 | $4,694,258 | $3,395,664 | $3,622,385 | $2,979,918 |
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