|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Hydrogen | $510,000 | | | $321,000 | | $660,000 | $649,000 |
| Argon | $264,000 | $684,000 | $721,000 | $938,000 | $897,000 | $824,000 | $867,000 |
| Rare gases other than argon | $426,000 | $686,000 | $742,000 | $1,346,000 | $1,957,000 | $3,091,000 | $3,949,000 |
| Nitrogen | $689,000 | $1,489,000 | $1,890,000 | $1,571,000 | $494,000 | $647,000 | $815,000 |
| Oxygen | $438,000 | $1,122,000 | $1,573,000 | $2,104,000 | $1,637,000 | $1,795,000 | $2,637,000 |
| Silicon, cont. by wt. not <99.99% of silicon | | | | | | $64,000 | $130,000 |
| Silicon, cont. by wt. <99.99% of silicon | $36,000 | | | | | $15,000 | $75,000 |
| Phosphorus | $3,000 | | | | | $2,000 | $1,000 |
| Selenium | | | | | | $3,000 | |
| Total | $2,366,000 | $3,981,000 | $4,926,000 | $6,280,000 | $4,985,000 | $7,101,000 | $9,123,000 |
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