据美国国情普查局七月间发表的研究报告,最近10年世界人口的增长率已有明显下降。1965—1970年期间,世界人口平均年增长率为2.1％,1970—1975年期间下降为1.9％,1975—1979年又下降为1.7％。但不同地区的实际增长率仍然有很大差别。1970—1975年和1975—1979年期间,拉丁美洲的平均年增长率均是2.4％,亚洲由2.2％降到1.9％,大洋洲(包括澳大利亚、新西兰和太平洋岛屿)由1.6％降到1.1％,北美洲由0.9％降到0.8％,欧洲由0.7％降到0.6％。只有非洲由2.8％上升 According to a study released by the U.S. National Bureau of Census in July, the world population growth rate has dropped markedly in the recent 10 years. Between 1965 and 1970, the average annual world population growth rate was 2.1%, from 1.9% in 1970-1975 and from 1.7% in 1975-1979. However, the actual growth rates in different regions are still quite different. Between 1970-1975 and 1975-1979, average annual growth rates in Latin America were 2.4%, in Asia decreased from 2.2% to 1.9%, in Oceania (including Australia, New Zealand and Pacific islands) from 1.6% to 1.1% From 0.9% in North America to 0.8% in Europe from 0.7% to 0.6%. Only Africa rose from 2.8%