![]() ![]() ![]() Projections show these gains will come mostly in sub-Saharan Africa, which is expected to more than triple in population by 2100. ![]() Between 20, Africa’s population is expected to increase from 1.3 billion to 4.3 billion. Contributing factors to the rise in the median age are the increase in life expectancy and falling fertility rates.Īfrica is the only world region projected to have strong population growth for the rest of this century. Starting in 2073, there are projected to be more people ages 65 and older than under age 15 – the first time this will be the case. Between 20, the number of people ages 80 and older is expected to increase from 146 million to 881 million. The world’s median age is expected to increase to 42 in 2100, up from the current 31 – and from 24 in 1950. ![]()
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