Commodity2005200620072008200920102011
Hydrogen fluoride (hydrofluoric acid)     $79$2,201
Inorganic acids other than hydrogen fluoride     $1,165$11,946
Carbon dioxide$87,221$142,614$122,345$76,325$82,114$122,317$241,323
Silicon dioxide   $146$5,075$617 
Inorganic oxygen comps. of non-metals other than inorganic acids/carbon dio ...$158$123$2,473$1,805$1,461$6,188$1,842
Total$87,379$142,737$124,818$78,276$88,650$130,366$257,312