Fans of Denmark must be even happier than usual: Denmark has retaken the title of “world’s happiest country,” knocking Switzerland into second place.

Denmark and Switzerland were closely followed by Iceland, Norway and Finland, according to the World Happiness Report Update 2016 by the Sustainable Development Solutions Network for the United Nations.

People in Burundi are the least satisfied with their lives, according to the survey of 156 countries, while India ranks 118 on the list.

So, click on the flag to see what makes that country so happy.