The International Day of Happiness Report measures well-being and happiness ranking factors by compiling rankings from the Gallup World Poll survey, which asks people globally to rate their current life on a scale from 0 to 10. The report uses a three-year average to calculate country-level happiness scores, ensuring small fluctuations do not sway the rankings. In addition to life evaluations, people are also asked about their emotions, both positive (laughter, enjoyment, interest) and negative (worry, sadness, anger). The report includes questions related to wealth, life expectancy, freedom of choice, corruption, social connections, and generosity as key factors in determining a country's overall well-being.