The concept of "birth" refers to the beginning of life, defined by the moment when a child emerges from the womb. Total births include both live births and stillbirths.
A live birth is defined as any birth of a child showing any sign of life. The total living births is the total births minus stillbirths.
Mortal births are defined as the expulsion or extraction from the mother's body of a dead fetus, from the point at which the fetus is normally presumed to be capable of independent ectopic life. This is generally considered to be the case after 24 or 28 weeks of gestation (the period of time between conception and birth of a child).
Out-of-wedlock live births are those where the mother's marital status at the time of delivery is other than "married".
The gross birth rate refers to the ratio of the number of births to the average population in a given year. It is usually expressed as the number of births per 1,000 population.
Source of definition: https://ec.europa.eu/eurostat/statistics-explained/index.php?title=Glossary:Birth/fr
Source of births in France INSEE (Institut national de la statistique et des études économiques):