Schweden: „The proportion of pupils who lack grades in at least one subject decreases the higher the education level of the parents. Pupils with university-educated parents had the lowest proportion, 12.7 percent. Among pupils whose parents’ highest education level was upper-secondary school, the proportion was 28.1 percent and for pupils whose parents’ highest education level was compulsory school, it was 56.2 percent.“
Swedish National Agency for Education (Hrsg.), „Facts and figures 2012: Preschool activities, schools and adult education in Sweden“ (2014), S. 26