United Nations Statistics Division: Learning and Education
"The United Nations Statistics Division collects data on literacy, educational attainment and school attendance from national statistical offices around the world and disseminates them in tabular form in special issues of the United Nations Demographic Yearbook. These official statistics provided by countries are derived from population censuses. In addition, the Statistics Division compiles and makes available online some statistics and indicators on illiteracy and education, derived from both population censuses and administrative systems, through its Social Indicators website and Statistics and indicators on women and men website. The major sources of these statistics and indicators are the United Nations Statistics Division and the UNESCO Institute for Statistics (UIS) the statistical branch of the United Nations Educational, Scientific and Cultural Organization (UNESCO)."