The median age in the 1950s was 33 years old, but it is increasing every year. The median age of the Swiss population in 2015 was 42.2 years. Switzerland, on the other side, has the greatest percentage of persons over 100 in Europe and the second-highest life expectancy after Japan. Of course, given the purity of the air, the amount of walking routes, and the availability of high-quality health care, they will live a long life.