* Child marriage prevalence is the percentage of women 20-24
years old who were married or in union before they were 18 years
old (UNICEF State of the World’s Children, 2012). It is based on
Multiple Indicator Cluster Surveys (MICS), Demographic and
Health Surveys (DHS) and other national surveys, and refers to
the most recent year available during the period 2000-2010. If
we do nothing, by the end of the decade an estimated 142 million
girls will be married as children. In the developing world are
said to be married before 18. Globally, almost 400 million women
aged 20-49 were married before 18.