 A 2007 report by the Cambodian NGO Education Partnership (NEP) suggested that education costs for each child averaged $108 annually — 9 percent of the average annual income of each family.Clearly, in a nation where having four or five children is very common, the education costs become very significant.The NEP study found that these fees were the main reason given for children not attending school and that a quarter of parents were unaware that their children had a right to free education.