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Birth Rate: 9.7/1,000 people ... Male Female 0 to 4 years: 723,016: 4.91%: ... Ontario's interprovincial migration rate have shifted over the years. It was negative ...
Qatar has the highest male-to-female ratio, with 2.87 males/female. For the group aged below 15, Sierra Leone has the lowest female-to-male ratio with 0.96 males/female, and the Republic of Georgia and the People's Republic of China are tied for the highest male-to-female ratio with 1.13 males/female (according to the 2006 CIA World Factbook).
In 1971, the birth rate for the first time dipped below replacement [30] [31] and since then has not rebounded. [ 30 ] Canada's fertility rate hit a record low of 1.4 children born per woman in 2020, [ 32 ] below the population replacement level, which stands at 2.1 births per woman.
It shows the male to female sex ratio by the Central Intelligence Agency of the United States. If there is a discrepancy between The World Factbook and a country's census data, the latter may be used instead. A ratio above 1, for example 1.1, means there are more males than females (1.1 males for every female).
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]
If the male fish dies, the strongest female changes its sex to become the male for the group. All of these wrasses are born female, and only become male in this situation. Other species, like clownfish, do this in reverse, where all start out as non-reproductive males, and the largest male becomes a female, with the second-largest male maturing ...
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.
Along with mortality rate, natality rate is used to calculate the dynamics of a population. They are the key factors in determining whether a population is increasing, decreasing or staying the same in size. Natality is the greatest influence on a population's increase. Natality is shown as a crude birth rate or specific birth rate.