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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Vermiculite, perlite & chlorites, unexpanded | $674,604 | $890,409 | $1,497,008 | $2,080,707 | $2,052,510 | $2,409,560 | $2,555,162 |
| Kieserite, epsomite (nat. magnesium sulphates) | $1,408,028 | $2,181,470 | $3,057,049 | $4,208,681 | $2,985,203 | $4,379,765 | $5,618,418 |
| Mineral subs., n.e.s. in Ch.25 | $14,337,948 | $15,044,185 | $15,801,597 | $21,026,918 | $22,335,574 | $17,543,738 | $32,172,779 |
| Total | $16,420,580 | $18,116,064 | $20,355,654 | $27,316,306 | $27,373,287 | $24,333,063 | $40,346,359 |
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