|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Furnace burners for liquid fuel | $13,948 | $25,782 | $106,260 | $58,362 | $20,740 | $16,051 | $34,254 |
| Furnace burners other than those for liquid fuel, incl. combination burners ... | $164,505 | $257,464 | $543,581 | $968,262 | $1,718,756 | $304,973 | $726,175 |
| Mechanical stokers (incl. their mech. grates), mech. ash dischargers & sim. ... | | | | | | $72 | |
| Parts of the furnace burners, mech. stokers & mech. ash dischargers & sim. ... | $856 | $2,535 | $16,939 | $28,410 | $484,835 | $68,221 | $178,946 |
| Total | $179,309 | $285,781 | $666,780 | $1,055,034 | $2,224,331 | $389,317 | $939,375 |
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