Schooling is free and compulsory in the Congo for children of ages 6 to 16. In the 1995-1996 school year primary school enrollment was 497,305 pupils, and 214,650 students attended secondary schools, including technical and teacher-training schools. The nation’s only university, Université Marien-Ngouabi (1961), is in Brazzaville. It has a yearly enrollment of about 12,000 students. The around literacy rate in 2001 was 98 %, one of the highest in Africa.