Education is now compulsory for children between the ages of 7 and 13. Primary education lasts for six years. The languages of instruction in schools are Kirundi and French. General secondary education lasts for seven years, while vocational secondary education usually lasts for five. The percentage of eligible children attending school decreased from 28% in 1967 to 18% in 1975 before rising to 51% in 1992. As of 1999, 45% of primary-school-age children were enrolled in school, while only about 5% of eligible young people attend secondary or technical schools