CRC/C/15/Add.120 page 4 Data-collection system 14. While taking note of the statistics on the situation of children contained in the annexes to the State party’s report and the efforts undertaken for the monitoring of the National Plan of Action for Children, the Committee remains concerned about the lack of disaggregated data for all areas covered by the Convention. The Committee recommends that the State party continue reviewing and updating its data-collection system, with a view to including all areas covered by the Convention. In this regard, the Committee encourages the State party to use the information provided by its next population census as a basis for the development of disaggregated data on children’s rights. Such a system should include all children under 18 years of age, specifically emphasizing the situation of vulnerable groups of children, as a basis for assessing progress achieved in the realization of children’s rights and to help design policies for better implementation of the provisions of the Convention. Furthermore, the Committee encourages the State party to seek technical assistance from, inter alia, UNICEF. Allocation of budgetary resources (art. 4) 15. While acknowledging the measures taken in the areas of health and education, the Committee remains concerned about the limitations imposed, owing to budgetary restrictictions, on the full implementation of social programmes for children, in particular the National Plan of Action for Children. The Committee reiterates its recommendation (ibid., para. 163) that such measures should be undertaken “to the maximum extent of [...] available resources” in light of articles 2, 3 and 4 of the Convention and that particular attention be paid to the protection of children belonging to vulnerable and marginalized groups. The Committee further recommends that the State party develop a locally based system to monitor and evaluate the situation of children living in areas of extreme poverty in order to give priority to budget allocations for these groups of children. In this regard, the Committee encourages the State party to seek technical assistance from, inter alia, UNICEF. 3. General principles The right to non-discrimination (art. 2) 16. While welcoming the adoption of special programmes, within the National Plan of Action for Children, for the protection of the rights of the most vulnerable children, the Committee is of the opinion that these measures need to be reinforced. Concern is expressed at the existing patterns of gender and racial discrimination; at the marginalization of children belonging to indigenous populations; and at the precarious situation of children from the rural highlands and the Amazonia region, especially regarding their limited access to education and health services. In light of its recommendation (ibid., para. 154), the Committee further recommends that the State party increase measures to reduce economic and social disparities, including between urban and rural areas, to prevent discrimination against the most disadvantaged groups of children, such as girls, children with disabilities, children belonging to indigenous and ethnic groups, children living in and/or working on the streets and children living in rural areas, and to guarantee their full enjoyment of all the rights recognized in the Convention.