(10)Establishing price indices for dwellings, and in particular for owner-occupied housing (OOH), is an important step towards further improving the relevance and comparability of the HICP. The HPI is a necessary basis for compiling the OOH price index. In addition, the HPI is an important indicator in its own right. By 31 December 2018, the Commission should prepare a report addressing the suitability of the OOH price index for integration into the HICP coverage. Depending on the results of that report, the Commission should, where appropriate, submit, within a reasonable time frame, a proposal for amending this Regulation with regard to integrating the OOH price index into the HICP coverage.