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demographics pt1 - Coggle Diagram
demographics pt1
births
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fluctuations in births, 'baby booms' in 20th century after the wars
total fertility rate : is the average number of children women will have during their fertile years (15-44)
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why are there changes? : more women remaining childless + women are postponing having children, average age of giving birth is 30
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the ageing population
2013, average age of population was 40.3 compared to 34.1 in 1971
caused by 3 factors : increasing life expectancy, declining infant mortality, declining fertility
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