For the sixth year running, Finland was named the world's happiest country in an annual UN-sponsored index Monday that saw acts of kindness grow in Ukraine despite the Russian invasion.

With thousands of lakes and near endless forests, the Nordic country is known for its extensive welfare system, high trust in authorities and low levels of inequality among its 5.5 million inhabitants.

While Ukraine's ranking improved from 98 to 92 this year, despite the Russian invasion, its overall score fell from 5.084 to 5.071, on a scale of zero to 10.