Commodity20052007200820092010
Vermiculite, perlite & chlorites, unexpanded$58 $43 $16
Kieserite, epsomite (nat. magnesium sulphates)  $54 $126
Mineral subs., n.e.s. in Ch.25$730$7$1,842$44 
Total$788$7$1,939$44$142