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Defend Earth from alien invaders
CRUDE BIRTH RATE
The total number of live births in a year for every 1,000 people alive in the society.
CRUDE DEATH RATE
The total number of deaths in a year for every 1,000 people alive in the society.
NATURAL INCREASE RATE
The percentage growth of a population in a year, computed as the crude birth rate minus the crude death rate
20TH CENTURY 1966 2.2%
TOTAL FERTILITY RATE
The number of children born to an average woman in a population during her entire reproductive life (15-49)
INFANT MORTALITY RATE
the death rate during the first year of life
The average number of years an individual can be expected to live, given current social, economic, and medical conditions. Life expectancy at birth is the average number of years a newborn infant can expect to live.
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