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The gross reproduction rate (GRR) is the average number of daughters a woman would have if she survived all of her childbearing years, which is roughly to the age of 45, subject to the age-specific fertility rate and sex ratio at birth throughout that period. This rate is a measure of replacement fertility if mortality is not in the equation. [1]
Replacement fertility is the total fertility rate at which women give birth to enough babies to sustain population levels, assuming that mortality rates remain constant and net migration is zero. [8] If replacement level fertility is sustained over a sufficiently long period, each generation will exactly replace itself. [ 8 ]
The following list sorts countries and dependent territories by their net reproduction rate.The net reproduction rate (R 0) is the number of surviving daughters per woman and an important indicator of the population's reproductive rate.
Countries need a fertility rate of about 2.1 kids per family to maintain a stable population. But two-thirds of the world's population already lives in countries where fertility is below this so ...
In 2023, the US fertility rate fell another 3% from the year before, to a historic low of about 55 births for every 1,000 females ages 15 to 44, according to final data published Tuesday by the ...
The U.S. birth rate from 2023 was down 2% from 2022, according to the Centers for Disease Control and Prevention. The economy is moving us back into the 19th century as fertility rates plunge Skip ...
This is a list of countries showing past fertility rate, ranging from 1950 to 2015 in five-year periods, as estimated by the 2017 revision of the World Population Prospects database by the United Nations Population Division. The fertility rate equals the expected number of children born per woman in her child-bearing years.
This is a list of U.S. states, federal district, and territories by total fertility rate. Total Fertility Rate by U.S. state in 2021 according to the Center for Disease Control & Prevention Fertility rate by State 2008 - 2020