Gender Parity Index for Life Expectancy At Birth (Female over Male) (Ratio)
Definition :

Ratio of Life Expectancy at Birth, Female and Life Expectancy at Birth, Male

Explanation :

A GPI of 1 indicates parity between the sexes; a GPI that varies between 0 and 1 typically means a disparity in favour of males; whereas a GPI greater than 1 indicates a disparity in favour of females.