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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Vermiculite, perlite & chlorites, unexpanded | $10,292,743 | $10,052,567 | $9,692,000 | $7,766,436 | $8,254,708 | $10,432,839 | $13,400,308 |
| Kieserite, epsomite (nat. magnesium sulphates) | $291,772 | $201,526 | $617,169 | $1,142,612 | $876,042 | $732,319 | $569,041 |
| Mineral subs., n.e.s. in Ch.25 | $5,636,389 | $6,042,601 | $10,811,263 | $11,898,668 | $8,616,334 | $10,397,704 | $24,235,804 |
| Total | $16,220,904 | $16,296,694 | $21,120,432 | $20,807,716 | $17,747,084 | $21,562,862 | $38,205,153 |
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