Commodity2005200620072008200920102011
Argon$302,507$286,272$148,929$183,526$67,541$29,040 
Rare gases other than argon$28,536,473$24,351,822$29,634,028$50,560,007$45,225,331$43,284,044$39,156,758
Nitrogen$18,798$62,762$185,168$9,697$260,436$10,635 
Oxygen$127,640$257,804$297,212$266,374$210,093$62,394$45,416
Silicon, cont. by wt. <99.99% of silicon$15,938      
Arsenic   $237,508   
Selenium   $72,129   
Total$29,001,356$24,958,660$30,265,337$51,329,241$45,763,401$43,386,113$39,202,174