2017 UPDATE: The Happiest Countries In The World

Happiness isn't just about money, although it's part of it.

Real gross domestic product per capita is one of the key measurements, said the report.

Others include generosity, a healthy life expectancy, having someone to count on, perceived freedom to make life choices and freedom from corruption, the report's authors argued.

They said it's a better measure of human welfare than analyzing education, good government, health, income and poverty separately.

"The World Happiness Report continues to draw global attention around the need to create sound policy for what matters most to people -- their well-being," said Jeffrey Sachs, the report's co-editor and director of the Earth Institute at Columbia University, in a statement.

"As demonstrated by many countries, this report gives evidence that happiness is a result of creating strong social foundations. It's time to build social trust and healthy lives, not guns or walls. Let's hold our leaders to this fact."

Now let us take on a tour of the various countries ranked as the happiest in the world in 2017