Commodity200520062007200820092010
Furnace burners for liquid fuel$33,717$1,146$143$352,456$4,969$22,601
Furnace burners other than those for liquid fuel, incl. combination burners ...$17,525$60,714$123,397$219,112$56,779$222,295
Mechanical stokers (incl. their mech. grates), mech. ash dischargers & sim. ... $1,005$494,321  $8,387
Parts of the furnace burners, mech. stokers & mech. ash dischargers & sim. ...$40,821$232,955$213,661$87,676$58,686$170,865
Total$92,063$295,820$831,522$659,244$120,434$424,148