|
| Commodity | 2005 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Producer gas/water gas generators, with/without their purifiers; acetylene ... | $2,000 | $7,800 | | | | $32,200 |
| Parts of the producer gas/water gas generators/acetylene gas & sim. water p ... | | | $2,200 | $20,300 | $8,200 | |
| Total | $2,000 | $7,800 | $2,200 | $20,300 | $8,200 | $32,200 |
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