Healthy and educated women benefit their family, community and nation. Educating girls has been shown to have huge benefits as it is associated with delayed marriage, lower fertility and improved health and survival rates for infants and children.
Values for Australia, Brazil, Mexico, China, India, Bangladesh and Saudi Arabia represent only the tropical regions of those nations.
Source: Barro and Lee Educational Attainment Dataset | Data : State of the Tropics Data
This ratio is a comparison between how many women and how many men attended secondary school.