glossary    * O *
Demographical and statistical terms Symbols
open population
an open population is one where migration is a significant component of population change, either in size or composition, or both.
 
order-specific total fertility rate
is given by the summation of age-specific fertility rates order by order.
 
order-specific fertility rate
number of live births of a given birth order (1,2,3, and so on) occurring in a year, per 1000 women in the childbearing ages.
 

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