French fertility is the highest in Europe. Because of its immigrants?

Abstract

Immigrant mothers account for 19% of all births in France today. The total fertility rate of immigrant women is higher than that of native-born French women (2.6 children versus 1.8 in 2017), but as only a minority of women are concerned, their births increase the French fertility rate by just 0.1 children, from 1.8 to 1.9 children per woman in 2017. With or without immigrants, fertility in France is among the highest in Europe