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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Vermiculite, perlite & chlorites, unexpanded | $467,835 | $720,565 | $908,396 | $2,606,530 | $2,499,396 | $2,055,945 | $3,618,784 |
| Kieserite, epsomite (nat. magnesium sulphates) | $75,899 | $131,811 | $314,234 | $671,178 | $566,845 | $327,414 | $467,478 |
| Mineral subs., n.e.s. in Ch.25 | $1,143,459 | $1,249,064 | $38,523,115 | $41,961,157 | $39,288,723 | $32,872,581 | $36,889,061 |
| Total | $1,687,193 | $2,101,440 | $39,745,745 | $45,238,865 | $42,354,964 | $35,255,940 | $40,975,323 |
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