Commodity20052006
Hydrogen$1,135 
Argon$71,154$25,555
Rare gases other than argon$75,198$94,993
Nitrogen$12,026$28,365
Oxygen$18,023$9,695
Silicon, cont. by wt. not <99.99% of silicon$377 
Silicon, cont. by wt. <99.99% of silicon $17,623
Phosphorus$72,405$58,568
Arsenic$2,808 
Selenium$1,464$236
Total$254,590$235,035