Commodity | 2005 | 2006 | 2007 | 2008 |
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 |
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