Want to be in a happy country? Pack your mittens.

Most of the world’s happiest countries lie in the higher latitudes of the Northern Hemisphere, according to the 2016 edition of the annual World Happiness Report.

Scandinavia fared particularly well, landing five entries among the top 10 happiest countries of the world.

On the other end of the scale, Burundi was rated the least happy country, followed by Syria, Togo, Afghanistan and Benin.

The United States ranked 13th overall, a rise of two places from its 2015 ranking.

The Report is published by the United Nations’ Sustainable Development Solutions Network. Rankings consider countries based on factors like equality, per capita GDP, social support, life expectancy, perceptions of corruption, individual liberties and how citizens rate their own lives within their home country.

10. Sweden

Sweden has emerged from two economic crisis and a prolonged period of malaise in the 1990s to become the 10th happiest country, according to the World Happiness Report. With a median age of 42.2 years old, it also has one of the oldest populations within the top 10.