Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
Hydrogen | | | | | | | $10,969 |
Argon | | $10,699 | $6,891 | $12,579 | $31,416 | $3,986 | $12,228 |
Rare gases other than argon | | | | | | | $3,320 |
Nitrogen | $777 | $3,944 | $3,004 | $4,574 | $1,024 | $318 | $84,769 |
Oxygen | | $2,151,366 | $7,748 | $2,489 | $9,130 | $639,589 | $58,896 |
Boron; tellurium | | | | | | | $2,049 |
Silicon, cont. by wt. not <99.99% of silicon | | | | $14,162 | | | $11,827 |
Silicon, cont. by wt. <99.99% of silicon | | | | $6,719 | | | |
Total | $777 | $2,166,009 | $17,643 | $40,523 | $41,570 | $643,893 | $184,058 |
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