What's world's "happiest" country?

An international survey of the residents of 135 countries by the Gallup-Healthways Global Well-Being Index found Panama to be the happiest country in the world.

Well-being was measured by five factors: purpose in life, physical health, financial security, supportive relationships, and community fulfillment. Gallup researchers analyzed the percentage of people in each country who flourished in three or more of these factors.

Panama ranked first with 61 percent of the population reflecting good well-being. Other happy countries included Costa Rica in second place with 44 percent and Denmark in third with 40 percent. Austria and Brazil tied for fourth with 39 percent each. The United States was tied in the ninth spot with Argentina and The Netherlands. Each had a well-being rating of 33 percent.

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Sourced from: livescience.com, This Is How 135 Nations Fare on Happiness