 Over the last 10 years (1999–2009 ) the population has changed at a rate of 18.6%.It has changed at a rate of 18.5% due to migration and at a rate of 1.9% due to births and deaths.Most of the population () speaks French (5,716 or 91.3%) as their first language, German is the second most common (136 or 2.2%) and Portuguese is the third (130 or 2.1%).