The total fertility rate (TFR), sometimes also called the fertility rate, period total fertility rate (PTFR) or total period fertility rate (TPFR) of a population is the average number of children that would be born to a woman over her lifetime if
- she were to experience the exact current age-specific fertility rates (ASFRs) through her lifetime, and
- she were to survive from birth through the end of her reproductive life.
It is obtained by summing the single-year age-specific rates at a given time.
Read more about Total Fertility Rate: Parameter Characteristics, Population-lag Effect, Developed or Developing Countries, United States, World Extremes, Europe, Factors
Famous quotes containing the words total, fertility and/or rate:
“Computers are good at swift, accurate computation and at storing great masses of information. The brain, on the other hand, is not as efficient a number cruncher and its memory is often highly fallible; a basic inexactness is built into its design. The brain’s strong point is its flexibility. It is unsurpassed at making shrewd guesses and at grasping the total meaning of information presented to it.”
—Jeremy Campbell (b. 1931)
“I will go root away
The noisome weeds which without profit suck
The soil’s fertility from wholesome flowers.”
—William Shakespeare (1564–1616)
“If I die prematurely at any rate I shall be saved from being bored to death at my own success.”
—Samuel Butler (1835–1902)