Life expectancy at birth could reach 100 in the next 60 years if present trends continue, researchers revealed yesterday. A study of the growth in longevity in Switzerland by the Faculty of Biology and Medicine of Lausanne has revealed that more people live to be 100 in Europe's most peaceable nation than anywhere else in the region. In 2000, there were 796 people aged 100 or older in Switzerland and the number has doubled every decade since 1950. Globally, life expectancy has more than doubled over the past 200 years - from 25 to 65 for men and to 70 for women in developed countries. Among women, it has risen by three months every year for the past 160 years in some countries. Switzerland has some of the highest numbers of people aged 90 or over, according to an analysis of census, population and death statistics for the period from 1860 to 2001. Although all countries have seen an increase in longevity, Switzerland has experienced one of the strongest rates, along with Japan.