Commodity200520062007200820092010
Hydrogen fluoride (hydrofluoric acid)$1,442     
Carbon dioxide$3,063$11,991 $453  
Silicon dioxide  $634 $34 
Inorganic oxygen comps. of non-metals other than inorganic acids/carbon dio ...$998   $5,799$6,949
Total$5,503$11,991$634$453$5,833$6,949