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If there is a discrepancy between The World Factbook and a country's census data, the latter may be used instead. A ratio above 1, for example 1.1, means there are more males than females (1.1 males for every female). A ratio below 1, for example 0.8, means there are more females than males (0.8 males for every female).
The current world population growth is approximately 1.09%. [7] 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. [7] The world population more than tripled during the 20th century from about 1.65 billion in 1900 to 5.97 billion in 1999.
The PRB puts the figure at 117 billion as of 2020, estimating that the current world population is 6.7% of all the humans who have lived since 190,000 BCE. [147] Haub (1995) prepared another figure, updated in 2002 and 2011; the 2011 figure was approximately 107 billion.
A baby born today will be the 8th billion human on the planet, according to a United Nations projection. It expects India to overtake China as the world's most populous nation next year.
Sex ratio by country for the population below age 15. Blue represents more boys, red more girls than the world average of 1.07 males/female. Sex ratio by country for total population. Blue represents more men and boys, red more women and girls than the world average of 1.01 males/female. Sex ratio by country for the over-65 population.
According to the latest U.N. projections, the world’s population could grow to around 8.5 billion in 2030, 9.7 billion in 2050 and a peak of around 10.4 billion during the 2080s. It is forecast ...
By old age, [clarification needed] the sex ratio reverses, with 81 older men for every 100 older women; [For this statistic to be meaningful, it is necessary to define the age range that is meant by "old age".] across all ages, the global population is nearly balanced, with 101 males for every 100 females. [8]
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 .