|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2011 |
| Furnace burners for liquid fuel | $125 | | | | $157 | $2,186 |
| Furnace burners other than those for liquid fuel, incl. combination burners ... | $1,374 | $2,667 | $35 | $556 | | $1,272 |
| Mechanical stokers (incl. their mech. grates), mech. ash dischargers & sim. ... | | $19 | | | | $3 |
| Parts of the furnace burners, mech. stokers & mech. ash dischargers & sim. ... | $428 | $281 | | $16 | | |
| Total | $1,927 | $2,967 | $35 | $572 | $157 | $3,461 |
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