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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2011 |
| Hydrogen | | | $1,795 | | $238 | $701 |
| Argon | | $14,086 | $39,356 | $54,335 | $3,333 | |
| Rare gases other than argon | $433 | | $486 | $680 | $5,486 | $12,653 |
| Nitrogen | | $7,585 | | $2,272 | $12,575 | $2,887 |
| Oxygen | $23,918 | $28,995 | $19,140 | $31,459 | $9,692 | $1,006 |
| Silicon, cont. by wt. not <99.99% of silicon | | | $5,142 | | $131 | $486 |
| Silicon, cont. by wt. <99.99% of silicon | | | | $10 | $34,244 | $44,893 |
| Phosphorus | | | | | | $6,906 |
| Selenium | | | | | $21 | |
| Total | $24,351 | $50,666 | $65,919 | $88,756 | $65,720 | $69,532 |
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