Commodity2005200620072008200920102011
Hydrogen$1,356$1,331    $199
Argon$85,468$68,353$54,895$70,360$45,347$32,513$152,837
Rare gases other than argon$63,890$9,722$152,479$7,896$45,186$80,266$129,237
Nitrogen$2,210$1,467 $2,900$3,174$4,408$2,809
Oxygen$597  $1,049$471$2,342$360
Silicon, cont. by wt. not <99.99% of silicon$805,047$4,009,590$6,454,969$13,273,262 $176,690 
Silicon, cont. by wt. <99.99% of silicon$396$465,369$263,560$306,342$41,841$156,314$292,604
Arsenic    $183  
Selenium     $17,592$65
Total$958,964$4,555,832$6,925,903$13,661,809$136,202$470,125$578,111