As a measure , '' fertility rate '' is the number of children born per couple , person or population .
As a measure , '' Fertility Rate '' is the number of children born per couple , person or population .
As a measure , '' Fertility Rate '' is the number of children born per couple , person or population .
Vereinfachen Sie diesen Absatz: As a measure , '' fertility rate '' is the number of children born per couple , person or population . Ausgabe: