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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]
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.
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]
Provinces by average fertility rate, 2001–2026 [1] Rank Province 2001–2006 2006–2011 2011–2016 2016–2021 ... Gauteng: 2.20 2.36 2.10 1.89 1.82 References
The mean age at childbearing indicates the age of a woman at their childbearing events, if women were subject throughout their lives to the age-specific fertility rates observed in that given year. [1] In countries with very high fertility rates women can have their first child at a much younger age than the mean age at childbearing.
Rates are the average annual number of births or deaths during a year per 1,000 persons; these are also known as crude birth or death rates. Column four is from the UN Population Division [3] and shows a projection for the average natural increase rate for the time period shown using the medium fertility variant. Blank cells in column four ...
Sri Lanka's population is aging faster than any other nation in South Asia and has the fifth highest rapidly growing population of older people in Asia after China, Thailand, South Korea and Japan. [16] [17] [18] In 2015, Sri Lanka's population aged over 60 was 13.9%, by 2030 this will increase to 21% and by 2050 this number will reach 27.4%.
Birth rate, also known as natality, is the total number of live human births per 1,000 population for a given period divided by the length of the period in years. [1]