The Gallup Organization has a world poll where more than half a million people have been asked questions about what they think of their life and about their experiences, and there have been other efforts along those lines.
Organizaţia Gallup face un sondaj de opinie la nivel mondial în care mai bine de jumătate de milion de oameni au fost intrebaţi ce cred despre viaţa lor si despre experienţele lor. Şi au mai fost făcute şi alte eforturi similare.