In 1950 the world's "less developed regions," containing 1.72 billion people (68% of the world's population), had a total fertility rate of 6 births per woman. This chapter focuses on tracing how by 2020 that population grew into 6.5 billion people (84% of the world's population), ...
YearGlobal Population SizeMedian Age 1950 2.6 billion 23.6 years 2018 7.6 billion 30.0 years 2050p 9.7 billion 36.1 years 2075p 10.7 billion 39.0 years 2100p 11.2 billion 41.6 years Global median age is projected to surpass 40 years by the end of the century, and it will be considerably hig...
World population ageing: 1950-2050. 来自 ERIC 喜欢 0 阅读量: 1139 作者: UNP Division 摘要: The Population Division of the United Nations has a long tradition of studying population ageing including estimating and projecting older populations and examining the determinants and consequences of ...
This report contains 1993 estiiiates of world population by country and region from 1950 to 1990 and projections to 2050 The projections show that world population will expand from 5.3 billion in 1990 to 6.2 billion in the year 2000 and to about 10.7 billion by the year 2050. The aggregate...
period1950to2050areprovidedforeachcountry,highlightingtherelevant indicatorsofpopulationageing. Thereportpresentsthefollowingfourmajorfindings: 1 Population and Development, vol. 1: Programme of Action adopted at the International Conference on Population and Development, Cairo, 5-13 September 1994 (United Nat...
题目 (A) 6. Between 1950 and 1990, the world population doubled to 5.3Nearly eighty of these people live in developing or poorer nations. A. billion; per cent B. billion; percentage C. billions; percents D. billions; per cent 相关知识点: 试题来源: 解析 答案见上 反馈 收藏 ...
The table gives estimates of the world population, in millions, from 1950 to 2000, taken from the U.S.Census Bureau.Year Population195025551960304019703708198044551990527520006079Use the exponential model and the population figures from 1950 and 1960 to predict the world population in the year 2050. ...
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UN (2002), World Population Aging 1950-2050, Sales No. E. 02. XIII. 3, Department of Economic and Social Affairs, Population Division, New York: United Nations Publications.UN Population Division, DESA., 2002. World ...
The article reports on a global population trends analysis conducted by global researchers at the International Institute for Applied System Analysis in Australia, which concludes that global population will peak at 9 billion at around 2070 and then will slowly decline. It mentions that the series of...