The Global Gender Gap Index was introduced at the World Economic Forum in 2006 to measure gender parity and track a country’s progress over time. An index score is the percentage of the gap between women and men that has been closed. The index measures gender parity across four sub-indexes including: Economic Participation and Opportunity; Educational Attainment; Health and Survival and Political Empowerment. To date, the Economic Participation and Opportunity gender gap has been closed by 59% globally.