|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Argon | $3,900 | | $40,680 | $19,680 | $113 | | |
| Rare gases other than argon | | $4,254 | $2,600 | $287 | | $24,609 | $483 |
| Nitrogen | $173,326 | $123,814 | $86,400 | $17,119 | $5,958 | | |
| Oxygen | $885 | $9,092 | | $3,000 | | $164 | |
| Total | $178,111 | $137,160 | $129,680 | $40,086 | $6,071 | $24,773 | $483 |
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