The  Organization for Economic Co-Operation and Development recently released the list of the World’s Happiest Places for 2009. The OECD used data from a Gallup World Poll conducted in 140 countries around the world last year. In each country, a sample of no more than 1,000 people, age 15 or older, were surveyed.

Denmark topped the list of the World’s Happiest Countries (2009).
1. Denmark
2. Finland
3. Netherlands
4. Sweden
5. Ireland
6. Canada
7. Switzerland
8. New Zealand
9. Norway
10. Belgium

Denmark on the number one spot last year. Check my previous post here :

Denmark Tops the List of the Happiest Countries in the World (2008).