Birth rate is the number of live births per 1000 people per year., Fertility rate is the average number of births per woman., Death rate is the number of deaths per 1000 people per year. , Infant mortality rate is the number of children per 1000 live births who die before their first birthday. , Maternal mortality rate is the number of mothers per 100,000 who die in childbirth., Population pyramids show the structure of a population. ,

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