Of the adult population, 460 people or 15.0% of the population are between 20 and 29 years old. 541 people or 17.6% are 30 to 39, 462 people or 15.1% are 40 to 49, and 385 people or 12.5% are 50 to 59. The senior population distribution is 209 people or 6.8% of the population are between 60 and 69 years old, 189 people or 6.2% are 70 to 79, there are 103 people or 3.4% who are 80 to 89, and there are 17 people or 0.6% who are 90 to 99. In the 2007 federal election the most popular party was the CVP which received 45.7% of the vote. The next three most popular parties were the SVP (29.2%), the FDP (15.5%) and the SPS (7.2%). In Samnaun about 53.6% of the population (between age 25-64) have completed either non-mandatory upper secondary education or additional higher education (either university or a Fachhochschule). Samnaun has an unemployment rate of 1.01%. , there were 46 people employed in the primary economic sector and about 26 businesses involved in this sector. 52 people are employed in the secondary sector and there are 10 businesses in this sector. 743 people are employed in the tertiary sector, with 105 businesses in this sector. The historical population is given in the following table: Languages Most of the population () speaks German (93.5%), with Portuguese being second most common (1.7%) and Serbo-Croatian being third (1.6%). Uniquely within Switzerland, the form of German spoken by the residents of Samnaun is a variant of the Bavarian language. Until the second half of the nineteenth century the population spoke a dialect of Romansh close to Vallader. See also Campione d'Italia, an Italian enclave surrounded by Switzerland. Livigno in Italy, a duty-free area in Italy. References External links Samnaun Tourism Samnaun Engadin History of Samnaun Ski areas and resorts in Switzerland Municipalities of Graubünden Duty-free zones of Europe Special economic zones Tax avoidance