I think this rating does not take into consideration local culture. For example, I don't think India has a culture that makes you introspect whether one is 'ha

I think this rating does not take into consideration local culture. For example, I don't think India has a culture that makes you introspect whether one is 'happy'. How about asking whether one is unhappy? My suspicion is that India will score low (as in, not unhappy) on that also.