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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. [10] If replacement level fertility is sustained over a sufficiently long period, each generation will exactly replace itself. [10]
The fertility rate among Japanese women was around 1.4 children per woman from 2010 to 2018. From then until 2022, the fertility rate further declined to 1.2. Apart from a small baby boom in the early 1970s, the crude birth rate in Japan has been declining since 1950; it reached its currently lowest point of 5.8 births per thousand people in 2023.
Japanese prefectures by total fertility rate (TFR), 2021. Western Japan (Kyushu, Chūgoku region, and Shikoku) has a higher birth rate than Central and Eastern Japan. [81] 13 of the 15 prefectures with a TFR of 1.45 or higher are all located in the Kyushu, Chugoku regions or Shikoku, with the other two prefectures being Fukui and Saga. [82]
A 2023 map of countries by fertility rate. Blue indicates negative fertility rates. Red indicates positive rates. The total fertility rate (TFR) of a population is the average number of children that are born to a woman over her lifetime, if they were to experience the exact current age-specific fertility rates (ASFRs) through their lifetime, and they were to live from birth until the end of ...
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.
A new constitution took effect in 1947 according to which the emperor became largely a symbolic head of state. Japan regained its sovereignty in 1952, and in 1972 the US gave back some islands, the Ryukyu, that included Okinawa. Japan's economic growth was swift, relying on new technologies, manufacturing and a protectionist attitude.
Crude birth rate refers to the number of births over a given period divided by the person-years lived by the population over that period. It is expressed as number of births per 1,000 population. The article lists 233 countries and territories in crude birth rate. The first list is provided by Population Reference Bureau. [1]
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.