The de jure population is a concept under which individuals (or vital events) are recorded (or are attributed) to a geographical area on the basis of the place of residence.

The median age of a population is the age that divides the population into two numerically equal groups.

The natural increase of a population is the excess of births over deaths.

The average number of daughters that a new-born girl would have during her lifetime if the age-specific fertility rates and mortality rates as observed in a certain year were to remain applicable.

The adjusted infant mortality rate indicates the probability of dying before age one in a given cohort.

Age is time lived since birth. Demographers calculate age in a number of ways: A. Age in completed years: age at last birthday, i.e. number of complete years lived by an individual at a given moment i [..]

The age pyramid is a graphical representation of the age structure and sex structure of a population in a system of coordinates. While the x-axis represents the amount of men (usually on the left) and [..]

The age structure indicates the composition of a population by age groups, also known as age composition, or age distribution.

The age-specific death rate is the number of deaths in a certain year in a certain age group, per capita of the population in that age group. Because there are important mortality differences between [..]

The age-specific fertility rate denotes the number of live births per woman in a certain age group, per year. Differences in the age composition of populations are eliminated when using age-specific f [..]