"The Sunday Times" reports that Ruut Veenhoven, a leading academic expert on happiness, has worked out a "life satisfaction index" based on the results of polling 100,000 people in 90 countries of the world.
The index has been based on questioning various groups of people who were asked "how much they like the life they lead". The respondents had to assess, on a 10-point scale, how happy they felt.
Residents of Malta top the list of the happiest people in the world, with 74 percent of its population considering themselves as being happy. Lagging a little behind are Danes, Swiss and Columbians, with 73 percent of them also feeling quite happy.
The top ten "happy countries" also include Iceland, Ireland, the Netherlands, Canada, Finland and Ghana.
The unhappiest people in the world were found to live in Tanzania, Zimbabwe, Moldavia and Ukraine, where only 20 percent of people feel happy.