Happiness index - Country rankings:
The average for 2019 was 5.42 points.The highest value was in Finland: 7.77 points and the lowest value was in the Central African Republic: 3.08 points. Below is a chart for all countries where data are available for: Happiness index.
Happiness Index, 0 (unhappy) - 10 (happy), 2019
(points, Source: The World Happiness Report, TheGlobalEconomy.com)