Commodity2005200620072008200920102011
Hydrogen$3,667$98$1,639$136$1,730$12,534 
Argon$105,665$130,572$273,210$155,041$175,128$85,856$46,881
Rare gases other than argon$47,745$75,102$40,892$5,968$67,290$8,356$43,038
Nitrogen$3,953$11,569$19,338$160$9,125$13,708$8,872
Oxygen$3,162  $23$21,269 $5,107
Boron; tellurium  $2,292$1,179$2,700$1,184$861
Silicon, cont. by wt. not <99.99% of silicon$17,224$2,619$200$8,094$1,662$1,458$19,565
Silicon, cont. by wt. <99.99% of silicon$19,218$25,215$29,627$21,958$16,173$22,988$35,154
Phosphorus$12,832$45,936 $25,697$1,083$24,505$44
Arsenic  $202$146  $5,274
Selenium $27,415$15,971$10,054$5,083$4,017$7,155
Total$213,466$318,526$383,371$228,456$301,243$174,606$171,951