Commodity20052006200720082009
Hydrogen$38,236$41,071$49,045$41,551$68,756
Argon$1,081,609$822,903$2,231,648$2,186,238$1,025,612
Rare gases other than argon$259,963$369,462$490,705$821,654$690,880
Nitrogen$853,753$1,117,414$820,391$1,479,069$374,910
Oxygen$781,562$408,233$337,043$583,874$213,795
Boron; tellurium$70,426$143,880  $649
Silicon, cont. by wt. not <99.99% of silicon$6,700   $82
Silicon, cont. by wt. <99.99% of silicon$13,597$74,772$89,842$86,304$22,426
Phosphorus  $963,600$90,003$590
Selenium   $175$419
Total$3,105,846$2,977,735$4,982,274$5,288,868$2,398,119