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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Vermiculite, perlite & chlorites, unexpanded | $1,023,538 | $1,028,944 | $1,212,205 | $730,896 | $408,818 | $25,200 |
| Kieserite, epsomite (nat. magnesium sulphates) | $212,667 | $197,246 | $325,360 | $2,138,165 | $738,104 | $1,791,850 |
| Mineral subs., n.e.s. in Ch.25 | $27,838,255 | $29,144,612 | $37,679,929 | $46,239,466 | $38,946,519 | $45,615,919 |
| Total | $29,074,460 | $30,370,802 | $39,217,494 | $49,108,527 | $40,093,441 | $47,432,969 |
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