What do you mean by Birth Rate ??
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Answer:
The birth rate in a period is the total number of live births per 1,000 population divided by the length of the period in years. The number of live births is normally taken from a universal registration system for births; population counts from a census, and estimation through specialized demographic techniques.[clarification needed] 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.
Another term used interchangeably with 'birth rate' is natality.
When the crude death rate is subtracted from the crude birth rate (CBR), the result is the rate of natural increase (RNI). This is equal to the rate of population change (excluding migration).
The birth rate is the ratio between the number of live-born births in the year and the average total population of that year