This page has a list of countries by School enrollment, preprimary, female (% gross), according to officially-recognized international sources compiled by the World Bank. Gross enrollment ratio is the ratio of total enrollment, regardless of age, to the population of the age group that officially corresponds to the level of education shown. Preprimary education refers to programs at the initial stage of organized instruction, designed primarily to introduce very young children to a school-type environment and to provide a bridge between home and school.