 Over the last 10 years (1999–2009 ) the population has changed at a rate of 8.7%.It has changed at a rate of 10% due to migration and at a rate of 1.2% due to births and deaths.Most of the population () speaks French (648 or 98.3%) as their first language, German is the second most common (5 or 0.8%) and Portuguese is the third (3 or 0.5%).