|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 |
| Hydrogen | $5,465 | | | | |
| Argon | $509 | $379 | | | $36,630 |
| Rare gases other than argon | $62,293 | $10,099 | $183,303 | $12,043 | |
| Nitrogen | $1,935 | | $823 | | $29,097 |
| Oxygen | $8,239 | $1,061 | $4,536 | $2,366 | $31,836 |
| Silicon, cont. by wt. not <99.99% of silicon | | | | | $7,352 |
| Silicon, cont. by wt. <99.99% of silicon | $1,919 | | | | |
| Total | $80,360 | $11,539 | $188,662 | $14,409 | $104,915 |
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