Where does the U.S. rank in the list of happiest countries?

The World Happiness Report 2015 gleans conclusions on national happiness based on the knowledge and data shared by experts in economics, psychology, health and public policy. The Nordic countries do well, with Switzerland, Iceland, Denmark and Norway topping off the list, while the bottom five consist of nations beset by political unrest, economic frailty and war: Rwanda, Benin, Syria, Burundi and Togo. The full 172-page report reveals all the jolly details (PDF).