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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Vermiculite, perlite & chlorites, unexpanded | $3,700,917 | $3,359,342 | $4,565,011 | $4,508,869 | $3,979,573 | $1,439,785 |
| Kieserite, epsomite (nat. magnesium sulphates) | $5,317,038 | $4,046,537 | $4,479,914 | $5,073,215 | $3,067,326 | $4,971,633 |
| Mineral subs., n.e.s. in Ch.25 | $17,307,412 | $18,678,644 | $26,209,695 | $34,862,697 | $28,345,220 | $32,782,288 |
| Total | $26,325,367 | $26,084,523 | $35,254,620 | $44,444,781 | $35,392,119 | $39,193,706 |
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