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Number of elderly (65+ years) per child (under five years), by country income group, 1950-2050

Higher-income countries are aging rapidly, whereas lower-income countries remain young. The world as a whole is rapidly aging. Globally, the number of people over age 65 is already larger than the number of children under age five. By 2050, it will be double that of children under age five and larger than the number of youth ages 15–24.

Source: World Bank. 2023. World Development Report 2023: Migrants, Refugees, and Societies. Washington, DC: World Bank. WDR 2023 team calculations, based on the medium fertility scenario of World Population Prospects 2022 applied to country income groups.

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