AS Population characteristics
Population density
number of individuals per unit of area
Replacement rate
the total fertility rate needed for a population to replace itself
Emigrant
A person leaving an area
Immigrant
A person moving into an area
Census
An official numbering of the people of a country or district.
Actual fertility rate
The actual number of babies born per female
Life expectancy
The average age of people at death
Infant mortality rate
The chance of dying in one's first year of life
Migration rate
The net amount of population change due to emigration and imigration
Birth rate
The number of births per 1000 people per year
Desired fertility rate
The number of children the average woman of a place would like to have
Death rate
The number of deaths per year per 1000 people
Natural Increase
When birth rate is higher than death rate
