|
| Commodity | 2005 | 2007 | 2008 |
| Producer gas/water gas generators, with/without their purifiers; acetylene ... | $6,050,379 | $9,352,960 | $11,803,185 |
| Parts of the producer gas/water gas generators/acetylene gas & sim. water p ... | $6,781,339 | $3,133,263 | $1,354,888 |
| Total | $12,831,718 | $12,486,223 | $13,158,073 |
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