happy vs. unhappy - I really would like to know who did that becuse this looks like completely shit to me, except for North European Countries (for which i've red real studies). And also, do not mix the quality of life with the happiness, this is basically un-related.
World and regional statistics, national data, maps, rankings – World Data Atlas World atlas is a site with simple data about the countries of the world. This from the creator of the site: "World Data Atlas is an ultimate source of world statistics on every country. It includes data on more than 2500 indicators. Topics cover Economics, Demographics, Health, Education, Energy and other socioeconomic information. "