资讯

Population growth rate depends on: Birth rate – death rate Replacement rate = how many children it takes to replace the parents Which is 2 plus a bit to make up for the children who die before ...
ACCORDING to a return published by the Registrar -General, the birth-rate in England and Wales during the year 1936 is provisionally estimated at 14-8 live births per thousand of the population ...
The rate of premature birth in the United States remains high, especially in the southern region of the country, according to the infant and maternal health nonprofit March of Dimes.
The Central Statistics Office has published the latest birth and death rates in each of the Republic's local electoral areas (LEAs), providing a snapshot of how a region's population is evolving.