Happiness or subjective wellbeing is one of the most difficult things to measure cross-culturally. Every time I see some happiness index I cringe.
Gallup results are floating around the Internet, but here are the more transparent results from the World Values Survey. (Here’s more on WVS in the Caucasus).
Taking that into consideration, I just wanted to point out World Values Survey’s mean results per country for happiness. 1 = very happy and 4 = not at all happy:
And here are the frequencies for my two favorite countries: