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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Vermiculite, perlite & chlorites, unexpanded | $1,698,881 | $1,468,165 | $1,356,760 | $1,600,623 | $1,187,048 | $1,825,837 | $3,308,651 |
| Kieserite, epsomite (nat. magnesium sulphates) | $391,466 | $453,285 | $392,323 | $519,562 | $277,319 | $222,138 | $105,161 |
| Mineral subs., n.e.s. in Ch.25 | $20,638,683 | $27,047,068 | $23,683,309 | $23,595,665 | $18,355,071 | $22,345,274 | $36,079,806 |
| Total | $22,729,030 | $28,968,518 | $25,432,392 | $25,715,850 | $19,819,438 | $24,393,249 | $39,493,618 |
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