|
| Commodity | 2006 | 2007 | 2008 | 2009 | 2010 |
| Producer gas/water gas generators, with/without their purifiers; acetylene ... | | $2,256 | $32,727 | $12,698 | $19,145 |
| Parts of the producer gas/water gas generators/acetylene gas & sim. water p ... | $203 | | | $1,566 | $5,722 |
| Total | $203 | $2,256 | $32,727 | $14,264 | $24,867 |
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