Most countries only track enrolment and not completion rates, yet enrolment is an inherently flawed measure of girls' access to education. Attendance is a better measure, as girls' attendance may be cut short due to domestic responsibilities such as cooking, fetching water and firewood, and childcare; lack of adequate sanitation in schools to meet the needs of menstruating girls; early marriage or pregnancy; and gender-based violence and harassment, including in schools. In situations of economic contraction, as households cope with declining household income, girls are more vulnerable to being pulled out of school, with girls experiencing a 29 per cent decrease in primary school completion rates versus 22 per cent for boys.