Definitions

• Birth rate: number of live births per 1,000 people per year.
• Total fertility rate (TFR): average number of children born to women during their fertile years.
• Infant mortality rate (IMR): number of infants who die before their first birthday per 1,000 born alive per year.
• Life expectancy: how long an average person born in a given year can expect to live.
• Death rate: number of deaths per 1,000 people per year.
• Dependency ratio: relationship between the numbers of workers and numbers of dependants.
• Net migration: differences between the numbers immigrating and emigrating.