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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Vermiculite, perlite & chlorites, unexpanded | $1,695,287 | $4,166,329 | $4,570,038 | $4,751,883 | $3,501,787 | $2,898,897 | $4,355,952 |
| Kieserite, epsomite (nat. magnesium sulphates) | $36,517 | $22,171 | $25,203 | $19,835 | $6,982 | $28,267 | $17,819 |
| Mineral subs., n.e.s. in Ch.25 | $60,584,920 | $52,837,484 | $44,014,027 | $27,341,970 | $12,776,855 | $9,293,629 | $18,078,519 |
| Total | $62,316,724 | $57,025,984 | $48,609,268 | $32,113,688 | $16,285,624 | $12,220,793 | $22,452,290 |
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