|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Hydrogen | | | | | $387 | | $11,730 |
| Argon | $15,608 | | | $3,098 | | | $67,113 |
| Oxygen | $1,331 | $1,295 | $37,746 | $139,690 | $20,111 | $121,667 | $67,243 |
| Silicon, cont. by wt. not <99.99% of silicon | | | | $1,629 | | | |
| Silicon, cont. by wt. <99.99% of silicon | $9,303 | | | $529 | | | |
| Arsenic | | | | | | | $3,172 |
| Total | $26,242 | $1,295 | $37,746 | $144,946 | $20,498 | $121,667 | $149,258 |
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