1.7 Vital events

In addition to the factors describing population status, demography also studies vital events, that is, births, deaths and migration. In addition, vital events include marriages contracted and divorces. Vital events also have their own "internal" structure according to age and gender, for example. The number of deaths can be examined by age and gender, children born by the age of mother and divorces by the duration of marriage.

The generality of vital events is highly dependent on age. Children are borne between the ages of 25 and 30, migration occurs most among persons entering working life and deaths become more general the older the people become. Vital events are "age dependent".