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Population distribution by age and sex for Angola in 2005. 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 world population more than tripled during the 20th century from about 1.65 billion in 1900 to 5.97 billion in 1999. [15] [16] [17] It reached the 2 billion mark in 1927, the 3 billion mark in 1960, 4 billion in 1974, and 5 billion in 1987. [18] The overall population of the world is approximately 8 billion as of November 2022.
The U.S. population grew by 1.6 million from 2018 to 2019, with 38% of growth from immigration. [27] Population growth is fastest among minorities as a whole, and according to the Census Bureau's 2020 estimation, 50% of U.S. children under the age of 18 are members of ethnic minority groups. [28]
Population pyramid of Europe in 2023 based on the collective United Nations geoscheme for Europe Europe population pyramid from 1950 to 2023. 330,000,000 people lived in Europe in 1916. [11] In 1950 there were 549,000,000. [12]
The population density is substantially higher in the south than in the north. The capital city Stockholm has a municipal population of about 950,000 (with 1.5 million in the urban area and 2.3 million in the metropolitan area). The second- and third-largest cities are Gothenburg and Malmö.
Population pyramid 2017 Life expectancy in Vietnam since 1950 Life expectancy in Vietnam since 1960 by gender. The following demographic statistics are from the CIA World Factbook, unless otherwise indicated.
Animated population pyramid 1982–2021. Those born during the World wars are marked in dark. Demographic features of the population of Italy include population density, ethnicity, education level, health of the populace, economic status, religious affiliations and other aspects.
According to the 2016 population census the population of Iran was 79.9 million, [1] a fourfold increase since 1956. Between 1976 and 1986, an average annual population growth of almost 4% was reached, but due to decreasing fertility levels the growth decreased to 1.2% between 2011 and 2016.