Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
Hydrogen | $120 | $506 | | | $127 | $138 | $112 |
Argon | $22,014 | $49,959 | $101,998 | $228,214 | $220,444 | $75,836 | $186,334 |
Rare gases other than argon | $548,616 | $72,589 | $19,133 | $67,858 | $34,792 | $57,210 | $141,660 |
Nitrogen | $17,354 | $13,543 | $291,112 | $59,860 | $54,666 | $37,232 | $52,935 |
Oxygen | $61,217 | $164,532 | $166,457 | $151,749 | $88,313 | $88,534 | $110,008 |
Silicon, cont. by wt. not <99.99% of silicon | | | | $3,886 | $3,653 | | |
Silicon, cont. by wt. <99.99% of silicon | | $7,987 | $46,117 | $95,750 | | | $527,388 |
Selenium | | | | | $424 | | $75 |
Total | $649,321 | $309,116 | $624,817 | $607,317 | $402,419 | $258,950 | $1,018,512 |
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