This page has a list of countries by Survival rate to the last grade of primary education, gender parity index (GPI), according to officially-recognized international sources compiled by the World Bank. Ratio of female survival rate to the last grade of primary education to the male survival rate to the last grade of primary education. 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.