|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Hydrogen | | $2,208 | | | | | |
| Argon | | | $878 | $2,922 | | $24,632 | $31,849 |
| Rare gases other than argon | $32,667 | $85,726 | $78,281 | $39,188 | $29,153 | $303,201 | $172,716 |
| Nitrogen | $3,768 | | | $450 | $16,554 | $1,525 | $5,517 |
| Oxygen | $14,395 | $62,129 | $93,177 | $751 | $7,971 | $812 | $249,237 |
| Total | $50,830 | $150,063 | $172,336 | $43,311 | $53,678 | $330,170 | $459,319 |
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