|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Hydrogen | | | $2,310 | $6,480 | $22,130 | $9,728 | |
| Argon | $28,010 | $67,165 | $58,315 | $32,858 | | | |
| Rare gases other than argon | $3,370 | $20,510 | $8,400 | $2,076 | | | $200 |
| Nitrogen | | | $20,505 | | $7,288 | | |
| Oxygen | | | $6,262 | | $3,508 | $270 | |
| Selenium | | | | | | | $14,444 |
| Total | $31,380 | $87,675 | $95,792 | $41,414 | $32,926 | $9,998 | $14,644 |
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