The report, also released in 2012 and 2013, is based on GDP per capita, social support, healthy life expectancy, freedom to make life choices, generosity, perception of corruption and a final indicator labelled 'everything else'.
The report is a legacy of Bhutan successfully petitioning the UN to adopt a resolution for countries to gather happiness data after Bhutanese ministers suggested Gross National Happiness as an alternative to GDP.
The ten happiest countries in the world
9 New Zealand
The ten least happy countries in the world
7 Burkina Faso
8 Ivory Coast
More: [These are the happiest countries in the world]2