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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.
World population pyramid from 1950 to projected in 2100 (UN, World Population Prospects 2017) A population pyramid (age structure diagram) or "age-sex pyramid" is a graphical illustration of the distribution of a population (typically that of a country or region of the world) by age groups and sex; it typically takes the shape of a pyramid when the population is growing. [1]
The dependency ratio is the age-population ratio of people who are normally not in the labor force (the dependent population, which includes those aged 0 to 14 and 65 and older) to those who are (the productive part, ages 15 to 64). It is used to gauge the strain on the populace that is productive.
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.
This is a list of U.S. states, the District of Columbia and territories by median age in 2020. [note 1] The median age is the index that divides the entire population into two numerically equal age groups, one younger than that age and the other older than that age. It is the only index associated with the age distribution of a population.
Population age pyramid of Russia from 1946 to 2023 Between 1993 and 2008 there was a great decrease in the country's population from 148 to 143 million. [ 35 ] There was a huge 50% decrease in the number of births per year from 2.5 million in 1987 to 1.2 million since 1997, but the current 1.42 fertility rate is still higher than that of the 1990s.
Born in 1951 or later: RMDs begin at age 73. Born between July 1, 1949, and December 31, 1950: RMDs should have started at age 72. Born before July 1, 1949: RMDs should have started at age 70 and 1/2.
An estimated 51.2% of Egyptians are under the age of 25, with just 4.3% over the age of 65, making it one of the most youthful populations in the world. [ 6 ] [ 7 ] Population size and distribution