(9)Consequently, and although the members of the ESCB do not participate in the production of European statistics pursuant to this Regulation, following an agreement between a national central bank and the Community statistical authority, within their respective spheres of competence and without prejudice to national arrangements between the national central bank and the NSI or other national authorities, data produced by the national central bank may, however, be used, directly or indirectly, by NSIs, other national authorities and the Community statistical authority, for the production of European statistics. Similarly, the members of the ESCB may, within their respective spheres of competence, use, directly or indirectly, data produced by the ESS, as long as the necessity has been justified.