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| Commodity | 2005 | 2006 |
| Hydrogen fluoride (hydrofluoric acid) | $1,922 | $788 |
| Inorganic acids other than hydrogen fluoride | $55,175 | $9,727 |
| Carbon dioxide | $24,434 | $5,285 |
| Silicon dioxide | $559,247 | $1,108,009 |
| Sulphur dioxide | $1,925 | |
| Inorganic oxygen comps. of non-metals other than inorganic acids/carbon dio ... | $42,425 | $59,793 |
| Total | $685,128 | $1,183,602 |
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