Elementary school includes primary school (the preparatory school year and the next 4 grades of primary school) and then four more grades (grades 5–8 of gymnasium). Most elementary schools are public; the Ministry of Education's statistics show less than 2% of elementary school students attend private school. Unless parents choose a school earlier, the future student is automatically enrolled in the school nearest to his or her residence. Some schools that have a good reputation are flooded with demands from parents even two or three years in advance. A negative consequence of this is that in many schools classes are held in two shifts lasting from as early as 7 a.m. to as late as 8 p.m. Education is free in public schools (including some books and auxiliary materials), but not entirely (some textbooks, notebooks, pencils and uniforms may be required to be purchased).