Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
Hydrogen | $575 | $583 | | $620 | $1,832 | | $2,770 |
Argon | $2,863 | $8,392 | $10,161 | $2,187 | $125 | $11,828 | $41,760 |
Rare gases other than argon | $158,758 | $136,232 | $106,715 | $145,591 | $39,691 | $134,594 | $282,754 |
Nitrogen | $30 | | $3,436 | $3,723 | $5,683 | $4,928 | $6,146 |
Oxygen | $753 | $1,177 | $46 | $135 | $5,284 | | |
Boron; tellurium | | | | | | | $679 |
Silicon, cont. by wt. not <99.99% of silicon | $4 | $5 | | $847 | $200 | $26 | |
Silicon, cont. by wt. <99.99% of silicon | $571 | $2,628 | $2,758 | $42,334 | $9,169 | $46,539 | $876 |
Phosphorus | | | | $1,645 | | $251 | $2,251 |
Selenium | $121 | | | | | $1,980 | |
Total | $163,675 | $149,017 | $123,116 | $197,082 | $61,984 | $200,146 | $337,236 |
|
|