Commodity2005200620072008200920102011
Central heating boilers (excl. of 84.02)$275,008,124$331,635,923$361,623,325$377,953,713$304,720,471$317,688,923$312,812,647
Parts of the boilers of 8403.10$68,336,068$86,640,500$142,886,084$160,972,934$157,829,660$163,091,783$173,342,459
Total$343,344,192$418,276,423$504,509,409$538,926,647$462,550,131$480,780,706$486,155,106