Väestönvaihtelu
Väestönvaihtelu refers to changes in the size and composition of a population over time. These changes are driven by three primary factors: births, deaths, and migration.
Births, also known as natality, increase the population. The birth rate, typically expressed as the number of
Deaths, or mortality, decrease the population. The death rate, similarly expressed per 1,000 people per year,
Migration involves the movement of people from one place to another, either permanently or temporarily. Emigration
The interplay of these components results in natural population growth (births minus deaths) and overall population