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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Carbon dioxide | $14,232 | $5,520 | $20,396 | $15,348 | $73,201 | $52,515 | $128,393 |
| Silicon dioxide | $2,128 | $8,008 | $14,392 | $16,644 | | $1,775 | |
| Inorganic oxygen comps. of non-metals other than inorganic acids/carbon dio ... | | | | | $14,530 | $138 | |
| Total | $16,360 | $13,528 | $34,788 | $31,992 | $87,731 | $54,428 | $128,393 |
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