Most pre-tertiary education is arranged at municipal level. Even though many or most schools were started as private schools, today only around 3 percent of students are enrolled in private schools (mostly specialist language and international schools), much less than in Sweden and most other developed countries. Pre-school education is rare compared with other EU countries and formal education is usually started at the age of 7. Primary school takes normally six years and lower secondary school three years. Most schools are managed by municipal officials.