Commodity2005200620072008200920102011
Argon$207,500$381,400$566,100$353,400$213,400$60,400$7,000
Rare gases other than argon$1,400$200     
Nitrogen$816,700$1,244,100$1,504,200$1,596,900$666,600$175,800 
Oxygen$2,520,300$3,168,800$3,882,200$3,594,300$784,700$439,300$489,800
Silicon, cont. by wt. not <99.99% of silicon $31,100$45,400$30,900$96,500$57,800$109,100
Silicon, cont. by wt. <99.99% of silicon      $200
Phosphorus$90,300 $400    
Total$3,636,200$4,825,600$5,998,300$5,575,500$1,761,200$733,300$606,100