|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Furnace burners for liquid fuel | | $100 | | $11,033 | | | |
| Furnace burners other than those for liquid fuel, incl. combination burners ... | $113,962 | $502,276 | $574,045 | $46,623 | $30,060 | $76,901 | $53,226 |
| Mechanical stokers (incl. their mech. grates), mech. ash dischargers & sim. ... | | | | | | | $135,834 |
| Parts of the furnace burners, mech. stokers & mech. ash dischargers & sim. ... | $562 | $5,108 | | | | | |
| Total | $114,524 | $507,484 | $574,045 | $57,656 | $30,060 | $76,901 | $189,060 |
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