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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Vermiculite, perlite & chlorites, unexpanded | $1,432,460 | $2,647,890 | $2,123,830 | $4,103,314 | $3,252,315 | $3,714,729 | $4,647,848 |
| Kieserite, epsomite (nat. magnesium sulphates) | $894,297 | $1,214,462 | $1,468,206 | $1,357,934 | $767,452 | $805,377 | $769,910 |
| Mineral subs., n.e.s. in Ch.25 | $3,801,547 | $6,560,034 | $8,588,459 | $7,689,110 | $5,550,741 | $9,537,997 | $10,208,822 |
| Total | $6,128,304 | $10,422,386 | $12,180,495 | $13,150,358 | $9,570,508 | $14,058,103 | $15,626,580 |
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