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The replacement fertility rate is 2.1 births per female for most developed countries (in the United Kingdom, for example), but can be as high as 3.5 in undeveloped countries because of higher mortality rates, especially child mortality. [11]
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.
[4] [10] Mongolia became one of the first countries to ratify the Convention on the Rights of the Child in 1990 and signed the second and third optional protocols in 2000 and 2013 respectively. [11] Many of Mongolia’s laws and policies attempt to protect and better the lives of Mongolian youth.
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]
The low birth rates in the contemporary United States can possibly be ascribed to the recession, which led families to postpone having children and fewer immigrants coming to the US. The current US birth rates are not high enough to maintain the size of the U.S. population, according to The Economist. [69] [70]
The table below shows annual population growth rate history and projections for various areas, countries, regions and sub-regions from various sources for various time periods. The right-most column shows a projection for the time period shown using the medium fertility variant. Preceding columns show actual history.
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.
The name Mongolia means the "Land of the Mongols" in Latin. The Mongolian word "Mongol" (монгол) is of uncertain etymology.Sükhbataar (1992) and de la Vaissière (2021) proposed it being a derivation from Mugulü, the 4th-century founder of the Rouran Khaganate, [13] first attested as the 'Mungu', [14] (Chinese: 蒙兀, Modern Chinese Měngwù, Middle Chinese Muwngu [15]), a branch of ...