Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2011 |
Hydrogen | $24,062 | $14,764 | $7,971 | $7,863 | $16,046 | $6,134 |
Argon | $301,395 | $260,712 | $508,897 | $716,558 | $633,504 | $772,766 |
Rare gases other than argon | $96,666 | $70,190 | $127,701 | $157,815 | $143,753 | $209,727 |
Nitrogen | $83,737 | $38,937 | $68,167 | $86,454 | $103,700 | $186,960 |
Oxygen | $1,393,746 | $87,246 | $153,997 | $1,060,290 | $1,119,989 | $1,021,240 |
Silicon, cont. by wt. not <99.99% of silicon | $66 | | | | | |
Silicon, cont. by wt. <99.99% of silicon | | $85,293 | $134,867 | $175,344 | $175,911 | $1,679,743 |
Phosphorus | $28 | $19 | $42 | $77 | | |
Arsenic | | | | | | $7,185 |
Selenium | $343 | | $220 | $448 | $27,510 | $124,066 |
Total | $1,900,043 | $557,161 | $1,001,862 | $2,204,849 | $2,220,413 | $4,007,821 |
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