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The current world population growth is approximately 1.09%. [5] 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. [5] The world's literacy rate has increased dramatically in the last 40 years, from 66.7% in 1979 to 86.3% today. [13]
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.
2 Bronze Age. 3 Iron Age. 4 Middle Ages. 5 Early ... Estimating population sizes before censuses were conducted is a difficult ... City 1600 1650 1700 1750 1800 1825 ...
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.
As of 2016, 757 million people live in the 101 largest cities; [41] these cities are home to 11% of the world's population. [41] By the end of the century, the world population is projected to grow, with estimates ranging from 6.9 billion to 13.1 billion; [41] the percentage of people living in the 101 largest cities is estimated to be 15% to ...
The Chinese municipality of Chongqing, which is the largest city proper in the world by population, comprises a huge administrative area of 82,403 km 2, around the size of Austria. However, more than 70% of its 30-million population are agricultural workers living in a rural setting .
The population, population density and land area for the cities listed are based on the entire city proper, the defined boundary or border of a city or the city limits of the city. The population density of the cities listed is based on the average number of people living per square kilometer or per square mile.
The Demography of the World Population from 1950 to 2100. Data source: United Nations — World Population Prospects 2017. Demography (from Ancient Greek δῆμος (dêmos) 'people, society' and -γραφία (-graphía) 'writing, drawing, description') [1] is the statistical study of human populations: their size, composition (e.g., ethnic group, age), and how they change through the ...