A/HRC/4/29 page 16 44. Similarly, national human rights institutions and ombudsmen have a significant role to play in monitoring the right to education of persons with disabilities. Internationally, intergovernmental organizations such as the United Nations, UNESCO, UNICEF and the Organisation for Economic Co-operation and Development (OECD) have already undertaken significant work in the area of inclusive education. These organizations, together with civil society initiatives, in particular organizations representing persons with disabilities, have a role to play in developing conceptually inclusive education within a human rights framework, in monitoring implementation, gathering statistics and data and in compiling best practices. 45. Monitoring the right to education and inclusive education in particular, requires a capacity to measure progress. To date, such capacity is lacking. Establishing clear quantitative and qualitative human rights indicators and the setting of benchmarks for future progress will therefore provide important means for doing so and may go some way towards filling the current gap in adequate, available data on disability generally, and disability and education in particular. While a quantitative indicator might provide, for instance, information on the number of children with disabilities enrolled in schools, a qualitative indicator will describe the quality of the syllabus and the extent to which disability is mainstreamed or sidelined within the curriculum. Accordingly, the Special Rapporteur encourages Governments, treaty bodies and United Nations agencies to develop indicators to measure the right to education of persons with disabilities. VI. RESPONSES TO THE QUESTIONNAIRE 46. In order to compile up-to-date information on the situation of the right to education of persons with disabilities, the Special Rapporteur sent out a detailed questionnaire to Governments, United Nations agencies, NGOs and independent experts. 47. By the deadline for submission, responses had been received from the Governments of Argentina, Australia, Austria, Brazil, Costa Rica, Croatia, Denmark, Ecuador, Estonia, Finland, Iraq, the Islamic Republic of Iran, Japan, Mauritius, Mexico, Morocco, Panama, the Philippines, Poland, Portugal, the Russian Federation, Saudi Arabia, Slovakia, Spain, Turkey and Uganda. Responses were also received from the Office of the United Nations High Commissioner for Refugees (UNHCR), the United Nations Population Fund (UNFPA) and UNESCO, and from local government authorities, universities, national human rights institutions, experts and NGOs from Angola, Argentina, Armenia, Australia, Brazil, Chile, Costa Rica, Cuba, Ecuador, El Salvador, the European Union, Germany, Ghana, Honduras, India, Israel, Italy, Kenya, Malawi, Malta, Mexico, the Netherlands, Nigeria, Peru, the Russian Federation, Serbia, Spain, Sri Lanka, Sweden, Switzerland, Uganda, the United Kingdom of Great Britain and Northern Ireland, the United States of America and Viet Nam. The Special Rapporteur also received regional responses from the African, Central Asian and Asia-Pacific regions, and from specific regions of some countries. The information provided below includes some comments made by the Special Rapporteur in order to place the responses received in the appropriate context.26 26 The contents of this section are the result of discussions held with Pablo Gentili, Flórencía Stubrin, Carlos Skliar and Lucila Rosso.