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World population
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Fertility and reproduction
Families and households
Mobility, migration and foreigners
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Education • work • economy
Environment • development
Families • households
Fertility • reproduction
Gender issues
Health • mortality
population ageing • age structure
Mobility • migration • foreigners
Figure-4.-Two-examples-of-birth-intervals-after-the-first-two-births-by-sex-of-prior-children-
