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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2011 |
| Carbon dioxide | $571,082 | $749,942 | $887,376 | $37,031 | $21,221 | $80 |
| Silicon dioxide | $2,589 | | | $1,310 | $4,111 | |
| Inorganic oxygen comps. of non-metals other than inorganic acids/carbon dio ... | $63,541 | $69,714 | $48,401 | $46,085 | $11,529 | |
| Total | $637,212 | $819,656 | $935,777 | $84,426 | $36,861 | $80 |
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