Commodity2005200620072008200920102011
Furnace burners for liquid fuel$15,976$6,997$11,707$87,379$51,966$29,347$3,870
Furnace burners other than those for liquid fuel, incl. combination burners ...  $1,170 $164,926$58,794$295,502
Mechanical stokers (incl. their mech. grates), mech. ash dischargers & sim. ...$4,461    $102 
Parts of the furnace burners, mech. stokers & mech. ash dischargers & sim. ...$60,086$18,673$818$3,054,479$809,928$3,797$8,106
Total$80,523$25,670$13,695$3,141,858$1,026,820$92,040$307,478