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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Vermiculite, perlite & chlorites, unexpanded | $2,327,037 | $3,684,098 | $4,656,888 | $5,956,542 | $5,032,914 | $9,809,891 | $12,389,447 |
| Kieserite, epsomite (nat. magnesium sulphates) | $25,290 | $28,085 | $31,848 | $31,724 | $50,672 | $104,541 | $33,682 |
| Mineral subs., n.e.s. in Ch.25 | $92,574,266 | $98,194,799 | $78,943,433 | $77,147,428 | $87,438,079 | $124,409,488 | $162,691,583 |
| Total | $94,926,593 | $101,906,982 | $83,632,169 | $83,135,694 | $92,521,665 | $134,323,920 | $175,114,712 |
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