How many of Ernest Boiceau's countrymen spoke the same language as him in 2015?
Swiss French Swiss French (French: "français de Suisse" ) is the variety of French spoken in the French-speaking area of Switzerland known as Romandy. French is one of the four official languages of Switzerland, the others being German, Italian, and Romansch. As of 2015, around 2 million people in the country (24.4% of the population) spoke French as their primary language and around 29.1% of the population has working knowledge of French.
Jola-Fonyi language Jola (French: "Diola" ; Jola: "Joola"), also called Jola-Fonyi (French: "Diola-Fogny" ), is a language spoken by half a million people in the Casamance region of Senegal, and neighboring countries. Jola-Fonyi is one of several closely related Jola languages spoken in the area.