Gender Inequality Index 2015

Report year 2015·Data year 2015

GII (0 = full equality, 1 = maximum inequality)·Higher is worse — rank 1 is worst affected·Published by UNDP Human Development Report Office

34 reference years (1990–2023), growing from 80 to 172 countries. The index measures the human development lost to inequality between women and men across reproductive health, empowerment and the labour market. ⚠ READ THE DIRECTION CAREFULLY: a LOWER score is better (0 is full equality), and rank 1 is the LEAST unequal country — the same combination the Global Hunger Index has, and the reason `rankOneIs` exists as a separate field. ⚠ These are not 34 published editions: the 2025 Human Development Report recalculates every year on one current methodology, the same shape as the HDI it ships alongside. UNDP states an official rank for 2023 only; the other 33 years are derived by ordering the score, verified to reproduce all 172 of UNDP's own 2023 ranks exactly before anything is written.

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