Commodity2005200620072008
Inorganic acids other than hydrogen fluoride$1,425$1,583$2,455$3,709
Carbon dioxide$1,631$891$549$10,166
Silicon dioxide $483  
Sulphur dioxide$1,161$4,570  
Inorganic oxygen comps. of non-metals other than inorganic acids/carbon dio ...$629   
Total$4,846$7,527$3,004$13,875