birth rate
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AI overview
A birth rate measures how many babies are born in a population each year, expressed as the number of births per 1,000 people. It matters because it helps governments and researchers understand whether a population is growing, shrinking, or staying stable, which affects planning for schools, jobs, healthcare, and other public services.
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Countries by birth rate
Birth rate, also known as natality and crude birth rate, is the total number of live human births per 1,000 population for a given period divided by the length of the period in years. The number of live births is normally taken from a universal registration system for births, or population counts from a census. The birth rate (along with mortality and migration rates) is used to calculate population growth. The estimated average population may be taken as the mid-year population.