建筑业是国民经济的重要行业，在国民经济发展中起着极其重要的作用，其占ＧＤＰ较大的份额。建筑业统计方法的运用，与统计数据质量有着密不可分的关系，将直接影响ＧＤＰ计算的准确性和国家投资政策的宏观调控。现行统计制度规定建筑业起报单位为辖区内具有建筑业资质等级四 The construction industry is an important industry of the national economy and plays an extremely important role in the development of the national economy. It accounts for a large share of GDP. The application of statistical methods in construction industry is closely related to the quality of statistical data and will directly affect the accuracy of GDP calculations and the macroeconomic control of national investment policies. The current statistical system stipulates that the reporting unit of the construction industry is a construction industry with qualification grade 4