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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.
Based on United Nations and Chinese government statistics, it was estimated in 1987 that by 2000 the population 60 years and older (the retirement age is 60 in urban areas) would number 127 million, or 10.1% of the total population; the projection for 2025 was 234 million elderly, or 16.4%.
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.
From the beginning of the current century there is a tendency to also estimate healthy life expectancy (HALE), the average number of years that a person can expect to live in "full health". [2] [3] Comparing life expectancies across countries can be problematic.
Because the age distribution of people at first marriage is skewed with a longer tail towards older ages, [1] the majority of people marry before the average age of first marriage. The median age is a more precise representation of when the majority of people marry; for most reporting sources, however, only the average age at marriage is reported.
The mean age at childbearing indicates the age of a woman at their childbearing events, if women were subject throughout their lives to the age-specific fertility rates observed in that given year. [1] In countries with very high fertility rates women can have their first child at a much younger age than the mean age at childbearing.
“But China’s retirement age remains one of the lowest in the world — at 60 for men, 55 for women in white-collar jobs and 50 for working-class women.” This is not new for China.
This is a list of the first-level administrative divisions of the People's Republic of China (P.R.C.) in order of their life expectancy in 2019–2022, including all provinces and autonomous regions, but not including special administrative regions. [1] Life Expectancy by Chinese Administrative Division in 2019.