Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
Hydrogen | $366 | | | | | | $56 |
Rare gases other than argon | $2,002 | $716 | $5,828 | $210,339 | $4,854 | $6,160 | $9,977 |
Nitrogen | | $12,382 | $40,619 | $4,672 | | | |
Oxygen | $122,661 | $274,573 | $126,577 | $134,775 | $25,993 | $4,859 | $2,594 |
Silicon, cont. by wt. not <99.99% of silicon | | | $691 | | | $200 | |
Silicon, cont. by wt. <99.99% of silicon | $28,644 | | $539 | $859 | $4,814 | $481 | $347 |
Arsenic | | | | | | $337 | |
Selenium | | | $5,397 | | | | |
Total | $153,673 | $287,671 | $179,651 | $350,645 | $35,661 | $12,037 | $12,974 |
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