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.
L'organisation Gallup a réalisé un sondage auprès de 500 000 personnes en leur demandant ce qu'ils pensaient de leur vies et de leurs expériences. Et il y a eu d'autres actions dans ce sens.