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据联合国对世界70多个国象的调查，各国住宅建设投资占国民生产总值（GDP）的比例大约在3％-8％之间。住宅建设投资在固定资产形成总额中所占比例也是国际统计的一项指标，一般在20％-30％之间。住宅产业的一个突出特点是对其它产业的影响较大，而受其它产业的影响较小。前几年
According to the UN survey of more than 70 countries in the world, the investment in housing construction in various countries accounts for about 3% -8% of the gross domestic product. The share of housing construction investment in the total fixed assets formation is also an indicator of international statistics, generally between 20% and 30%. A prominent feature of the residential industry is the greater impact on other industries, but less affected by other industries. A few years ago