|
| Commodity | 2005 | 2006 | 2007 |
| Hydrogen | $16,587 | $4,078 | |
| Argon | $34,331 | $36,217 | $18,264 |
| Rare gases other than argon | | $9,294 | $2,499 |
| Nitrogen | $111 | $1,918 | $3,367 |
| Oxygen | $386 | $2,368 | $2,601 |
| Boron; tellurium | | | $22 |
| Silicon, cont. by wt. not <99.99% of silicon | | | $15,890 |
| Silicon, cont. by wt. <99.99% of silicon | | $57,000 | |
| Total | $51,415 | $110,875 | $42,643 |
|
|
