World Happiest countries: Nigeria ranked ... Finland is the world’s happiest country, according to an annual survey issued on Wednesday, March 14 that put Burundi at the bottom of the happiness index and Nigerians at 91st position. The survey also found Americans were getting less happy even as their country became richer. The UN Sustainable Development Solutions Network’s 2018 World Happiness Report ranked 156 countries according to their scores for things such as GDP per capita, social support, healthy life expectancy, social freedom, generosity and absence of corruption. READ ALSO: Senator Akpabio blasts Governor Yahaya Bello Finland rose from fifth place in 2017 to oust Norway from the top spot. The 2018 top-10, as ever dominated by the Nordics, is Finland, Norway, Denmark, Iceland, Switzerland, Netherlands Canada, New Zealand, Sweden and Australia. The U S. came in at 18th, down from 14th place in 2017. Britain was 19th and the United Arab ...