A/HRC/19/64 39. Since the launch of the campaign, 14 States have ratified the Optional Protocol – Côte d‘Ivoire, Djibouti, Guinea, Guinea-Bissau, Guyana, Jamaica, Luxembourg, Malta, Mauritius, New Zealand, Nigeria, Pakistan, San Marino and Saudi Arabia. The Central African Republic and Saint Lucia have signed. 40. To accelerate progress, in May 2011 the Special Representative, in collaboration with strategic partners, hosted a treaty event in New York, on the occasion of the first anniversary of the launch of the campaign, and supported a regional event hosted by the African Union with the United Nations Economic Commission for Africa (UNECA), UNICEF and OHCHR, in Addis Ababa. The Commonwealth Heads of Government Meeting in Australia in October 2011 called on members to become parties to all major human rights instruments. In these and other high level meetings, the campaign received strong support from Governments, United Nations agencies, as well as parliamentarians, Ombuds for children, faith-based organizations and civil society organizations. 41. At least 21 States have made formal commitments to the ratification of the Optional Protocol, including in the framework of the universal periodic review of the Human Rights Council and before the Committee on the Rights of the Child or human rights mandate holders. Of those not yet parties to the Protocol, 50 per cent have ratified to the Palermo Protocol on Trafficking in Human Persons, and 75 per cent to ILO Convention No. 182 on the Worst Forms of Child Labour, which address similar areas of concern. B. Conducting a global survey to assess progress in the prevention and elimination of all forms of violence against children 42. The year 2011 marked the middle of the Special Representative‘s mandate and five years since the review of the Study by the General Assembly, presenting a strategic occasion to gain perspective on progress achieved, boost efforts to overcome challenges and generate renewed energy towards children‘s protection from violence. For this reason, the Special Representative launched a global survey to map and assess progress in the implementation of the Study recommendations. The survey was developed in close collaboration with a wide range of partners, including governments, United Nations agencies, regional organizations and institutions, and civil society organizations. 43. Children and young people are also important partners in this process, as they have been in the Study development and follow-up. To capture their views and recommendations, and build upon their active participation in regional consultations and regional governance structures, the Special Representative promoted, in close collaboration with civil society partners, the development a child-friendly version of the survey to frame discussions with young people in different regions. 44. The global survey also builds upon the significant analytical reviews conducted at the regional level, including by the League of Arab States, SAIEVAC, MERCOSUR and Central American countries. It draws upon United Nations and international monitoring processes, including the universal periodic review of the Human Rights Council, reporting to the Committee on the Rights of the Child and other treaty bodies, and the follow-up to the World Congresses against Sexual Exploitation of Children and Adolescents and the Roadmap for Achieving the Elimination of the Worst Forms of Child Labour by 2016, adopted by The Hague Global Child Labour Conference in 2010. 45. Contributions to the survey will feed into the Special Representative‘s analytical report which she will present to the General Assembly in 2012. This report will inform the mandate‘s review and the shaping of a forward-looking strategy to accelerate progress and re-energize national, regional and international action. 10