According to population profiles, it differs through the fact that while both birth and death rates are high in developing countries, both are low in developed countries.
Three to seven children are born to each mother on average in developing countries. However, in affluent nations, the average total fertility rate is between one and three children per woman.
One of the main factors affecting the rate of population expansion is the total fertility rate (TFR). TFR is the average number of children a woman would have if she lived to the end of her reproductive potential and experienced the same likelihood of childbearing at each age range as the general population does today.
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