These rankings were calculated by evaluating seven different variables in each country.
Source: "World Happiness Report 2015" edited by John Helliwell, Richard Layard and Jeffrey Sachs; Note: Some disputed territories, like North Cyprus and the Somaliland Region, are not shown on the map. Data was unavailable for some countries. Published: April 23, 2015. Graphic: Lazaro Gamio and Samuel Granados