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Dataset | 27 April 2021

UN DESA World Population Prospects

The UN publishes global population projections and estimates every two years from 1951 using current population by age; and age-specific rates of fertility; mortality and migration to assess hypothetical population trends and to help understand determinants of population change and inform policy discussions.

This is prepared by the Population Division of the Department of Economic and Social Affairs of the United Nations Secretariat. The main results are presented in a series of Excel files displaying key demographic indicators for each development group; income group; major area; region and country for selected periods or dates within 1950-2100.

The methodology report first describes the way that country estimates have been prepared and then explains the approaches and assumptions that were used to project fertility; mortality and international migration up to the year 2100. The report also provides an overview of the variants used in generating the different sets of population projections as well as information on the recently developed probabilistic projection methods; which depict the uncertainty of future demographic trends; with results presented for all countries and areas of the world up to the year 2100.

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