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Report: Denmark the Happiest Country

Mathias Bojesen/Scanpix Denmark/Reuters

People hold Danish flags as they celebrate the 75th birthday of Denmark's Queen Margrethe, who is received at the City Hall, April 16, 2015.

Denmark has retaken its spot at the top of the World Happiness Report, with Burundi claiming the lowest position. According to the report, released Wednesday, inequality was strongly associated with unhappiness. Previously, the United States was ranked 15 on the list but has moved up two spots since 2015. Also notable: in comparison to other developed countries, China came in at 83.