|
| Commodity | 2005 | 2006 | 2010 |
| Argon | $576 | $100,428 | $39,678 |
| Rare gases other than argon | | $861 | |
| Nitrogen | | $1,668 | $29,057 |
| Oxygen | $17,451 | $7,403 | $24,636 |
| Silicon, cont. by wt. not <99.99% of silicon | | $44 | |
| Silicon, cont. by wt. <99.99% of silicon | | $2,577 | $25,500 |
| Selenium | | | $392,903 |
| Total | $18,027 | $112,981 | $511,774 |
|
|
