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Niger's very high total fertility rate (6.89 children born per woman, which is the highest in the world [2]), nonetheless, means that nearly half (49%) of the Nigerien population is under age 15. School attendance is low (34%), including 38% of males and 27% of females.
Population age pyramid of Niger in 2020 Wodaabe women with traditional facial tattoos. As of 2021, the population of Niger was 25,252,722. [14] [15] Niger's population has rapidly increased from its population of 3.4 million in 1960 and has a current growth rate of 3.3% (7.1 children per mother). [128] [129]
The numbers show total births minus total deaths per 1,000 population for the region for each time period. The first four columns show actual rate of natural increase. The remaining columns show projections using the medium fertility variant. All numbers are from the UN Population Division. [4]
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]
As of 2009, the average birth rate (unclear whether this is the weighted average rate per country [with each country getting a weight of 1], or the unweighted average of the entire world population) for the whole world is 19.95 per year per 1000 total population, a 0.48% decline from 2003's world birth rate of 20.43 per 1000 total population.
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In demography and population dynamics, the rate of natural increase (RNI), also known as natural population change, is defined as the birth rate minus the death rate of a particular population, over a particular time period. [1] It is typically expressed either as a number per 1,000 individuals in the population [2] or as a percentage. [3]
Historic population of Japan (1920–2010) with projected population (2011–2060). As of 2016, Japan has the third lowest crude birth rate (i.e. not allowing for the population's age distribution) in the world, with only Saint Pierre and Miquelon and Monaco having lower crude birth rates. [ 32 ]