Commodity2005200620072008200920102011
Hydrogen$105,251$43,553$34,570$58,312$71,544$25,668$65,174
Argon$124,788$190,935$181,961$245,070$198,289$222,803$269,388
Rare gases other than argon$70,818$72,472$88,203$110,257$166,321$264,979$334,379
Nitrogen$89,345$126,385$270,743$221,321$450,933$491,968$790,936
Oxygen$274,526$578,475$1,255,124$1,325,033$859,334$1,217,825$2,254,378
Silicon, cont. by wt. not <99.99% of silicon $1     
Silicon, cont. by wt. <99.99% of silicon$26,700$30,780$15,274$1,840$76,671$7,356$13,228
Phosphorus$112,148$86,609$60,473$158,648$119,551$155,026$133,615
Arsenic$1,488$1,626   $14$4,414
Selenium$5,002$21,625$13,816$45,315$7,302$2,765$15,314
Total$810,066$1,152,461$1,920,164$2,165,796$1,949,945$2,388,404$3,880,826