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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 .
A centenarian is a person who has reached the age of 100. Because life expectancies at birth worldwide are well below 100, the term is invariably associated with longevity.The United Nations estimated that there were 316,600 living centenarians worldwide in 2012, [1] and 573,000 in 2020, almost quadruple the 2000 estimate of 151,000.
Pan-American countries by population, 2020. This is a list of countries and dependent territories in the Americas by population, which is sorted by the 2015 mid-year normalized demographic projections.
In 2024, 0.03% of the US population was 100 years old or older. But the Pew Research Center, using data from the US Census Bureau, estimates this will grow to 0.1% by 2054.
Living past 100 is unusual: as of January this year, centenarians made up 0.03% of the US population, according to a Pew Research Center analysis of US Census Bureau data. But average life ...
Statistical subregions as defined by the United Nations Statistics Division [1]. This is the list of countries and other inhabited territories of the world by total population, based on estimates published by the United Nations in the 2024 revision of World Population Prospects.
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. The age structure of a country has a strong impact on society and the economy. If the proportion of 0–14-year-olds is very high, there may be a so-called youth bulge. If ...
The national 1 July, mid-year population estimates (usually based on past national censuses) supplied in these tables are given in thousands. The retrospective figures use the present-day names and world political division: for example, the table gives data for each of the 15 republics of the former Soviet Union, as if they had already been independent in 1950.