Commodity2005200620072008200920102011
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