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Want to live in the 'happiest country in the world'?? Time to move to Norway! According to the NY Times: 

After placing fourth last year, Norway is now the world’s happiest country, according to the 2017 World Happiness Report, released on Monday. The Central African Republic was the least happy of 155 countries.

The ranking is based on answers to a simple life evaluation question developed decades ago by a social scientist and posed to people around the world between 2014 and 2016 by Gallup, the polling organization.  

The United States ranked 14th on the list and Norway displaces the prior 'happiest country', Denmark.