|
| Commodity | 2005 | 2006 | 2007 | 2008 |
| Producer gas/water gas generators, with/without their purifiers; acetylene ... | $4,590 | $3,124 | $87,795 | $35,532 |
| Parts of the producer gas/water gas generators/acetylene gas & sim. water p ... | $2,820 | $581 | $3,929 | $2,328 |
| Total | $7,410 | $3,705 | $91,724 | $37,860 |
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