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New York, UN, 1977. 183 p. (Population Studies No. 60)The projections in this report cover the years 1970-2000. Quinquennial projections were prepared by sex and 5-year groups for each of 155 countries, 8 major areas, and 24 regions. Projections by sex and single years of age for population between ages 5-24 are provided for every region and country. Other demographic indicators were calculated for each region including population totals for males and females, sex ratio, percentage distribution by age category, dependency ratio, median age, crude birth and death rates, general and total fertility rate, life expectancy, and gross and net reproduction rate. In 1975 the world population was estimated at 4 billion; the medium variant projection for the year 2000 is 6.25 billion. The rate of growth is estimated at 1.9% for 1970. A downward trend is expected for 1985 when growth will slow to 1.6%. There will continue to be wide disparities in the rates of growth of developed and less developed nations. In the less developed regions the annual rate of growth is expected to maintain its current 2.3-2.4% for about 15 years, 1970-85, reaching 1.9%, after a downward trend, by 2000. The more developed regions should decline from .9% to .6%. The highest average annual rate of growth is in Latin America, 2.7%, (1970-5). In 1975 Africa had the highest annual rate of growth, expected to exceed 2.9% from 1985-2000. Only Eastern Africa and Middle America are expected to exceed 3% up to 1990-95.