A clear majority of Ukrainians agree that their country should remain a single, unified state after Crimea’s annexation by Russia,…

This chart shows the percentages of countries in which life evaluations have grown significantly, not changed by a significant amount,…

In each region, happiness is mostly explained by GDP per capita, social support and healthy life expectancy. Other factors like…

In 2011, the estimated median income for all households in the United States was $50,054. South and Midwest regions fell…