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据联合国人口统计年鉴报道,1920年全世界人口为186,200万,到1970年已达363,300万。五十年来人口增加了近一倍。人口增长速度在最近的二十年中尤为显著。1920年到1950年,平均每十年增加2亿多,但五十年代却增加了48,600万,六十年代又增加62,900万。1971年统计世界人口增长7,200万。如按目前2％的增长率,到2000年,估计世界人口将达65亿左右。因此计划生育问题已成为全世界共同关心和迫切需要解决的问题。各国相继成立了
According to the United Nations Demographic Yearbook, the world’s population in 1920 was 1.82 million, reaching 3.633 billion by 1970. The population has nearly doubled in 50 years. The rate of population growth has been especially pronounced in the last two decades. From 1920 to 1950, it averaged more than 200 million a decade, but increased by 486 million in the 1950s and an additional 629 million in the 1960s. In 1971, the world’s population was increased by 72 million. If by the current 2% growth rate, by the year 2000, it is estimated that the world’s population will reach about 6.5 billion. Therefore, the issue of family planning has become a common concern and urgently needed issue for the entire world. Countries have been established