Commodity2005200620072008200920102011
Hydrogen$1,768$1,092$1,628$1,018$302$4$752
Argon$39,527$18,821$25,295$41,491$40,287$29,718$28,262
Rare gases other than argon$97,049$47,193$153,731$107,810$90,858$118,299$55,924
Nitrogen$1,352$1,003$2,486$1,795$8,165$4,432$3,607
Oxygen$147,913$155,100$165,470$324,957$243,697$170,099$147,304
Boron; tellurium    $61  
Silicon, cont. by wt. not <99.99% of silicon   $6,489$7,618 $9,241
Silicon, cont. by wt. <99.99% of silicon$832$2,953 $1,643$122$8,445$882
Arsenic    $61  
Total$288,441$226,162$348,610$485,203$391,171$330,997$245,972