The Programme for International Student Assessment, coordinated by the OECD, currently ranks Ireland as having the fourth highest reading score, ninth highest science score and thirteenth highest mathematics score, among OECD countries, in its 2012 assessment. In 2012, Irish students aged 15 years had the second highest levels of reading literacy in the EU. Ireland also has 0.747 of the World's top 500 Universities per capita, which ranks the country in 8th place in the world. Primary, secondary and higher (university/college) level education are all free in Ireland for all EU citizens. There are charges to cover student services and examinations.