How do families live these days? OECD’s comprehensive world education ranking report, PISA 2009, was published in December of 2010. All participants of the test (fifteen-year-old pupils) completed a questionnaire about their living situation at home. ZEIT ONLINE analyzed and visualized this data to provide you with a unique way of comparing standards of living in different countries. Više… Pisa-Länder im Wohlstandsvergleich – ZEIT ONLINE.