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Population age pyramid of Nigeria in 2020, similar to all of sub-Saharan Africa. Each country will have a different population pyramid. However, population pyramids can be categorised into three types: stationary, expansive, or constrictive. These types have been identified by the fertility and mortality rates of a country. [6]
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. It presents population estimates from 1950 to the present.
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.
Cartogram of the world's population in 2018; each square represents 500,000 people. This is a list of countries and dependencies by population.It includes sovereign states, inhabited dependent territories and, in some cases, constituent countries of sovereign states, with inclusion within the list being primarily based on the ISO standard ISO 3166-1.
The current world population growth is approximately 1.09%. [8] People under 15 years of age made up over a quarter of the world population (25.18%), and people age 65 and over made up nearly ten percent (9.69%) in 2021. [8] The world population more than tripled during the 20th century from about 1.65 billion in 1900 to 5.97 billion in 1999.
English: Population pyramid of the world in continental groupings in 2023 Note: The continental groupings used here are defined by United Nations geoscheme regions, ones used are as follows; Europe; Asia; Africa; Oceania; Northern America and Latin America and the Caribbean (two split categories)
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 ...
This is a list of countries showing past and future population density, ranging from 1950 to 2300, as estimated by the 2017 revision of the World Population Prospects database by the United Nations Population Division. The population density equals the number of human inhabitants per square kilometer of land area.