Natural increase
In Demography, the natural balance or natural increase is the difference between the number of births and the number of deaths on a territory.
One gives this balance for a population of 1000 inhabitants
The natural balance can thus be positive or negative.
Added to the Migratory balance, it makes it possible to calculate the total variation of a population.
The natural rate of increase for 1000: Index expressing the natural increase, for 1000 inhabitants, lasting one year. It is calculated by dividing the number of live births by the number of deaths enregsitrés during 1 year. the result being multiplied per 1000.
If the data which you have are in the form of percentages:
If there is x% of annual birthrate, (i.e. the number of naissanes for 100 inhabitants) and y% of mortality (i.e. the number of deaths for 100 inhabitants) the natural rate of increase will be (X there) %.
See too
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