Economy Finland tops world's happiest countries list again: UN report Updated : March 20, 2019 11:32 PM IST South Sudan came last in the UN Sustainable Development Solutions Network's 2019 World Happiness Report. It ranked 156 countries according to things such as GDP per capita, social support, healthy life expectancy, social freedom, generosity and absence of corruption. Subscribe to Moneycontrol PRO at just Rs.33/- per month for the first year. Use code SUPERPRO. Limited period offer. Available on Web and Android.