Education is compulsory for children ages 6 to 16 under the Education Act. Most children in Gabon start their school lives by attending nurseries or "Crèche", then kindergarten known as "Jardins d'Enfants". At age 6, they are enrolled in primary school, "École Primaire" which is made up of six grades. The next level is "École Secondaire", which is made up of seven grades. The planned graduation age is 19 years old. Those who graduate can apply for admission at institutions of higher learning, including engineering schools or business schools. In Gabon as of 2012, the literacy rate of its population ages 15 and above was 82%.