To support evidence-based responses, States and relevant stakeholders will, as appropriate, promote the development of harmonized or interoperable standards for the collection, analysis, and sharing of age, gender, disability, and diversity disaggregated data on refugees and returnees.19 Upon the request of concerned States, support will be provided for the inclusion of refugees and host communities, as well as returnees and stateless persons as relevant, within national data and statistical collection processes; and to strengthen national data collection systems on the situation of refugees and host communities, as well as returnees.