|
| Commodity | 2006 | 2007 | 2008 |
| Producer gas/water gas generators, with/without their purifiers; acetylene ... | $943,266 | $701,681 | $515,131 |
| Parts of the producer gas/water gas generators/acetylene gas & sim. water p ... | $146,396 | $389,971 | $355,623 |
| Total | $1,089,662 | $1,091,652 | $870,754 |
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