This page has a list of countries by Population of the official entrance age to primary education, male (number), according to officially-recognized international sources compiled by the World Bank. Male population of the age-group theoretically corresponding to the official entrance age to primary education. The official entrance age is the age at which students would enter a given programme or level of education assuming they start at the official entrance age for the lowest level of education, study full-time throughout and progressed through the system without repeating or skipping a grade. The theoretical entrance age to a given programme or level is typically, but not always, the most common entrance age.