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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Vermiculite, perlite & chlorites, unexpanded | $12,176,287 | $14,187,568 | $14,781,685 | $14,069,413 | $10,588,265 | $6,056,572 | $20,755,883 |
| Kieserite, epsomite (nat. magnesium sulphates) | $3,130,049 | $4,938,385 | $5,688,913 | $4,625,575 | $3,800,787 | $6,536,147 | $4,729,773 |
| Mineral subs., n.e.s. in Ch.25 | $40,832,646 | $39,788,532 | $45,161,374 | $79,376,607 | $49,074,540 | $60,818,937 | $53,750,045 |
| Total | $56,138,982 | $58,914,485 | $65,631,972 | $98,071,595 | $63,463,592 | $73,411,656 | $79,235,701 |
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