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Total Fertility Rate

Total Fertility Rate (TFR)
  • an average number of children born per woman

for a population to remain the same, TFR must be 2.1

higher than 2.1: population rises
lower than 2.1: population falls

World TFR: 2.42 (it was 2.54 three years ago and 2.47 two years ago)

US TFR: 2.01 (it was 2.06 two years ago)
Nigeria TFR: 6.89 ( developing nation)
Japan TFR: 1.40 ( developed nation, aging population)


CIA Factbook Questions
  • What is the population of the US?
    • 326,625,791
  • What is the infant mortality rate and the US rank?
    • A: 5.8 deaths/ 1000 live births; rank 169
  • which country has the highest percent of Catholics?
    • Mexico 82.7%, Canada: 39%, US: 20.8%
  •  What country has the largest population in Africa?
    • Nigeria ( 190,632,261) Rank 7

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