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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Vermiculite, perlite & chlorites, unexpanded | $8,757,692 | $8,942,491 | $10,789,738 | $13,397,012 | $11,223,537 | $15,311,393 | $17,346,706 |
| Kieserite, epsomite (nat. magnesium sulphates) | | $235 | $1,318 | | | $925 | $2,603 |
| Mineral subs., n.e.s. in Ch.25 | $20,850,781 | $18,588,307 | $21,168,549 | $32,333,021 | $23,743,323 | $30,946,928 | $28,760,600 |
| Total | $29,608,473 | $27,531,033 | $31,959,605 | $45,730,033 | $34,966,860 | $46,259,246 | $46,109,909 |
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