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Statistical Terms Population by age group
Topic
Population
Definition
Population by age group is calculated as a percentage of the total population. Population is based on the de facto definition of population.
Source
World Bank staff estimates based on age/sex distributions of United Nations Population Division's World Population Prospects: 2019 Revision.
Periodicity
Annual
Temporal Coverage
1999-2020
Note
Because the five-year age group is the cohort unit and five-year period data are used in the United Nations Population Division's World Population Prospects, interpolations to obtain annual data or single age structure may not reflect actual events or age composition. For more information, see the original source.