Source: World Bank
Release: World Development Indicators
Population ages 65 and above as a percentage of the total population. Population is based on the de facto definition of population, which counts all residents regardless of legal status or citizenship--except for refugees not permanently settled in the country of asylum, who are generally considered part of the population of the country of origin.
Nations that are included in this data series are listed at http://data.worldbank.org/about/country-and-lending-groups
Source Indicator: SP.POP.65UP.TO.ZS
World Bank, Population ages 65 and above: All Income Levels for Europe and Central Asia [SPPOP65UPTOZSECS], retrieved from FRED, Federal Reserve Bank of St. Louis; https://fred.stlouisfed.org/series/SPPOP65UPTOZSECS, September 19, 2020.