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PEOPLE. 1987; 14(2):25.At some time during 1987 the 5 billionth person will be born according to the UN Population Division. If the UN media variant projections are accurate, the world will pass the 5 billion mark between April and July 1987. The world's population is expected to total 6 billion in 1999, 7 billion in 2010, and 8 billion in 2022. At the time the population reaches 5 billion, the annual global rate of population growth is estimated to be 1.63%. According to the medium-variant projections, the growth rate will drop to about 1.4% by 2000 and to less than 1% by 2025. Despite the relatively recent decline in the growth rate of the world, the annual increment to the total population continues to increase. Half of the world's 5 billion people in 1987 will be under age 24 and close to 1/3 will be children under age 15. 1 billion persons will be in the 15-24 age group; about 1 of 10 will be age 60 or older. 1 of 25 persons will be 70 years or older. By the middle of 1987, 42% of the world's population, or 2.1 billion people, will reside in urban areas, and it is anticipated that more than half of the world's 7 million people will live in towns and cities by 2010.
New York, New York, United Nations, 1987. ix, 385 p. (ST/ESA/SER.R/70.)The report presents the estimated and projected sex and age distributions according to the medium, high, and low variants for population growth for 1950-2025 for countries and areas generally with a population of 300,000 and over in 1980. The data for smaller countries or areas are included in the regional population totals and are not given separately. This report supplements the report on the WORLD POPULATION PROSPECTS: ESTIMATES AND PROJECTIONS AS ASSESSED IN 1984, which presents methods, data, assumptions, and a summary of major findings of the estimates and projections, as well as selected demographic indicators for every country or area of the world. The sex and age distributions of population in this report are based on the 10th round of the global demographic assessments undertaken by the UN Secretariat. They are derived from data that were available to the UN generally by the beginning of 1985; therefore, the figures presented supercede those that were previously published by the UN.