Passage: Kindergartens (幼稚園 yōchien), predominantly staffed by young female junior college graduates, are supervised by the Ministry of Education but are not part of the official education system. The 58% of kindergartens that are private accounted for 77% of all children enrolled. In addition to kindergartens, there exists a well-developed system of government-supervised day-care centers (保育園 hoikuen), supervised by the Ministry of Labor. Whereas kindergartens follow educational aims, preschools are predominantly concerned with providing care for infants and toddlers. Just as there are public and private kindergartens, there are both public and privately run preschools. Together, these two kinds of institutions enroll well over 90 percent of all preschool-age children prior to their entrance into the formal system at first grade. The Ministry of Education's 1990 Course of Study for Preschools, which applies to both kinds of institutions, covers such areas as human relationships, health, environment, language, and expression. Starting from March 2008 the new revision of curriculum guidelines for kindergartens as well as for preschools came into effect.

Question: What percentage of the enrolled students go to private school?
77%