|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Vermiculite, perlite & chlorites, unexpanded | $19,556 | $64,651 | $157,258 | $173,183 | $188,926 | $291,714 | $371,566 |
| Kieserite, epsomite (nat. magnesium sulphates) | $25,154 | $37,622 | $3 | | | $780 | |
| Mineral subs., n.e.s. in Ch.25 | $7,170,465 | $7,782,226 | $8,418,885 | $8,817,306 | $7,869,455 | $9,351,071 | $13,345,505 |
| Total | $7,215,175 | $7,884,499 | $8,576,146 | $8,990,489 | $8,058,381 | $9,643,565 | $13,717,071 |
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