The number of live births per 1000 of the population per year
Fertility rate
The avg number of children per adult women (this differs from the completed family size,which is the avg number of children for a woman born in a particular year
Infant mortality rate
The number of deaths per children under the age of 1 per 1000 live births per year
Mortality rate
the number of deaths per 1000 of the population per year (also known as death rate)
Net migration
The number of people moving into a country, minus the number of people moving away
Life expectancy
The avg length of time someone is expected to live today:the avg age a newborn baby born today would reach,assuming mortality rates remain the same as they are now