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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Hydrogen | $91,740 | $60,730 | $31,618 | $153,207 | $156,123 | $48,506 |
| Argon | $4,970 | $27,066 | $208,927 | $146,160 | $46,595 | $20,849 |
| Rare gases other than argon | $23,323 | $15,839 | $174,357 | $57,827 | $65,824 | $4,305 |
| Nitrogen | $33,184 | $919 | $70,446 | $94,296 | $36,485 | $3,576 |
| Oxygen | $6,624 | $6,673 | $5,328 | $1,579 | $948 | |
| Silicon, cont. by wt. not <99.99% of silicon | $46 | $54,740 | $68,571 | $69,743 | $75,788 | $126,643 |
| Silicon, cont. by wt. <99.99% of silicon | $43,389 | $3,009 | $3,061 | | $8,829 | |
| Arsenic | | | | | $38 | |
| Selenium | | | | | $6 | |
| Total | $203,276 | $168,976 | $562,308 | $522,812 | $390,636 | $203,879 |
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