|
| Commodity | 2005 | 2007 | 2010 | 2011 |
| Argon | $5,638 | $4,096 | $14,358 | $11,678 |
| Rare gases other than argon | $8,315 | $12,932 | | $755 |
| Nitrogen | $1,584 | | | $15,690 |
| Oxygen | $72,267 | $5,456 | | |
| Silicon, cont. by wt. <99.99% of silicon | | $1,043 | $3,606 | |
| Total | $87,804 | $23,527 | $17,964 | $28,123 |
|
|
