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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Vermiculite, perlite & chlorites, unexpanded | $296,694 | $332,267 | $289,087 | $419,365 | $134,094 | $49,611 | $328,331 |
| Kieserite, epsomite (nat. magnesium sulphates) | $14,025 | $19,315 | $812 | | | $8,277 | $20,797 |
| Mineral subs., n.e.s. in Ch.25 | $1,613,702 | $1,679,692 | $3,597,574 | $2,800,036 | $7,955,462 | $9,599,076 | $10,601,496 |
| Total | $1,924,421 | $2,031,274 | $3,887,473 | $3,219,401 | $8,089,556 | $9,656,964 | $10,950,624 |
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