Commodity2005200620072008200920102011
Central heating boilers (excl. of 84.02)$47,597,804$64,025,600$61,542,804$71,916,154$57,115,439$47,171,785$63,287,139
Parts of the boilers of 8403.10$9,166,561$13,581,054$12,945,082$15,855,614$11,524,499$13,015,716$17,233,364
Total$56,764,365$77,606,654$74,487,886$87,771,768$68,639,938$60,187,501$80,520,503