Although public education is free, the cost is still quite high for Haitian families who must pay for uniforms, textbooks, supplies, and other inputs. Due to weak state provision of education services, private and parochial schools account for approximately 90% of primary schools, and only 65% of primary school-aged children are actually enrolled. At the secondary level, the figure drops to around 20%. Less than 35% of those who enter will complete primary school. Though Haitians place a high value on education, few can afford to send their children to secondary school and primary school enrollment is dropping due to economic factors. Remittances sent by Haitians living abroad are important in paying educational costs. After the January 12, 2010 earthquake most schools in the greater Port-au-Prince area were not operating, though some schools re-opened on April 5. As of July 1, 2010, 75% of students in earthquake-affected areas had returned to school.