As well as a personal sense of wellbeing, based on Gallup polls in each country, the happiness score takes account of GDP, social support, personal freedom and levels of corruption.
Kimwe no kumva ko umuntu ameze neza, ashingiye ku matora ya Gallup muri buri gihugu, amanota y'ibyishimo atekereza kuri GDP, inkunga y'abaturage, ubwisanzure bwite na ruswa.