Commodity200520062007200820092010
Vermiculite, perlite & chlorites, unexpanded$650$2,690$21,666$12,842$9,546 
Kieserite, epsomite (nat. magnesium sulphates)    $753 
Mineral subs., n.e.s. in Ch.25$9,803$12,720$26,311$67,582$6,443$13,742
Total$10,453$15,410$47,977$80,424$16,742$13,742