Finland has been crowned the happiest country in the world for the 7th year running. See the top 20.

• Finland has been named the world's happiest country for the seventh year in a row.
• The World Happiness Report released its annual rankings of the happiest countries on Wednesday.
• The US fell out of the top 20 as youth happiness plummeted.

Finland has been crowned the happiest country in the world for the seventh consecutive year.

The World Happiness Report released its annual rankings of the happiest countries on Wednesday, with the majority of the top spots going to European nations.

The report, published by the United Nations Sustainable Development Solutions Network, relies on data from the Gallup World Poll, which is analyzed by some of the world's leading well-being scientists.