|
| Commodity | 2005 | 2006 | 2007 | 2008 |
| Argon | $23,244 | $51,903 | $10,317 | $28,699 |
| Rare gases other than argon | $22,345 | $1,471 | $17,004 | $25,720 |
| Nitrogen | $15,299 | | $3,816 | |
| Oxygen | $3,387 | | $53,299 | $63 |
| Silicon, cont. by wt. <99.99% of silicon | $10,572 | | | |
| Phosphorus | | $4,817 | | |
| Total | $74,847 | $58,191 | $84,436 | $54,482 |
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