This page has a list of countries by Gross enrolment ratio, primary and lower secondary, gender parity index (GPI), according to officially-recognized international sources compiled by the World Bank. Ratio of female gross enrolment ratio for primary and lower secondary to male gross enrolment ratio for primary and lower secondary. It is calculated by dividing the female value for the indicator by the male value for the indicator. A GPI equal to 1 indicates parity between females and males. In general, a value less than 1 indicates disparity in favor of males and a value greater than 1 indicates disparity in favor of females.