Data is reliable, valid and representative, free of gender biases, with good coverage (including country coverage and regular country production), and is comparable across countries in terms of concepts, definitions and measures. Quality data should have the features of complexity (meaning that data from different domains in women’s lives can be cross-referenced and cross-tabulated), and granularity (where the data can be disaggregated into smaller units by race and ethnicity, age and geographic location, as well as sex).