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Population pyramid of China (2018) Population ageing is an increasing median age in a population because of declining fertility rates and rising life expectancy.Most countries have rising life expectancy and an ageing population, trends that emerged first in developed countries but are now seen in virtually all developing countries.
The following list of countries by age structure sorts the countries of the world according to the age distribution of their population. The population is divided into three groups: Ages 0 to 14 years: children. Ages 15 to 64 years: working population or adults. Over the age of 65: elderly, senior citizens.
It is the only index associated with the age distribution of a population. [ 1 ] Currently, the median age ranges from a low of about 18 or less in most Least Developed countries to 40 or more in most European countries, Canada , Cuba , Hong Kong , Japan , South Korea , Taiwan , and Thailand .
Percentage of the population over 65 in Europe in 2020 Population pyramid of the European Union in 2023 Europe population pyramid from 1950 to 2023. The ageing of Europe, also known as the greying of Europe, is a demographic phenomenon in Europe characterised by a decrease in fertility, a decrease in mortality rate, and a higher life expectancy among European populations. [1]
The Study on global AGEing and adult health (SAGE) is run by the World Health Organization.An objective for SAGE is to compile comprehensive longitudinal data on the health and well-being of adult populations and the ageing process across different countries, through primary data collection, secondary data analysis and cross-study collaborations.
Only countries with populations over 50,000 are listed. Due to this criterion, the table does not include such countries as Monaco (LE 86.37 years, population 39,000), San Marino (LE 85.71 years, population 34,000), and Saint Barthélemy (LE 84.29 years, population 11,000). The values are rounded, all calculations were done on raw data.
China's population pyramid, 2023 to 2100, as projected by the United Nations in 2022. China's population is aging faster than almost all other countries in modern history. [1] [2] In 2050, the proportion of Chinese over retirement age will become 39 percent of the total population according to projections.
During the Great Recession, population aging alone cost the United States 1.7 million workers, reckoned the Peterson Institute for International Economics. [97] From a demographic point of view, the labor shortage in the United States during the 2020s is inevitable due to the sheer size of the aging Baby Boomers.