|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Producer gas/water gas generators, with/without their purifiers; acetylene ... | $4,000 | $3,658 | | | $5,172 | $3,269 | |
| Parts of the producer gas/water gas generators/acetylene gas & sim. water p ... | | $12,152 | $7,067 | $8,878 | | | $20,651 |
| Total | $4,000 | $15,810 | $7,067 | $8,878 | $5,172 | $3,269 | $20,651 |
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