The United Nations Sustainable Development Solutions Network published the second World Happiness Report in 2013.
----- It provided the rankings of national happiness levels of 156 nations based on people’s responses to six variables, including GDP per capita, years of healthy life expectancy, social support (having someone to count on in times of trouble), perceptions of corruption, prevalence of generosity, and freedom to make life choices. How reliable do you find the six variables in evaluating how happy people are in a specific country?
----- The report was based on a survey conducted in 156 nations worldwide. In the final rankings, the top five countries are Denmark, Norway, Switzerland, Netherlands, and Sweden, and the bottom five are Rwanda, Burundi, Central African Republic, Benin, and Togo. How do you interpret the result of this report?