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| Commodity | 2005 | 2006 | 2007 | 2008 |
| Hydrogen | $52,932 | $8,690 | $41,255 | $9,246 |
| Argon | $26,760 | $32,206 | $41,103 | $26,815 |
| Rare gases other than argon | $55,278 | $107,254 | $76,180 | $216,459 |
| Nitrogen | $385,871 | $696,339 | $422,065 | $2,486,546 |
| Oxygen | $675,566 | $700,521 | $599,530 | $559,639 |
| Silicon, cont. by wt. not <99.99% of silicon | | $382 | | |
| Silicon, cont. by wt. <99.99% of silicon | $2,026 | $349 | $19,279 | $74,133 |
| Arsenic | | | | $2,927 |
| Selenium | | $227 | | |
| Total | $1,198,433 | $1,545,968 | $1,199,412 | $3,375,765 |
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