The OOH price index shall be compiled, where possible and provided that the data are available, for the 10 years preceding the entry into force of this Regulation.
Déanfar an t-innéacs praghsanna TÚÁ a thiomsú, i gcás inar féidir é agus ar choinníoll go mbeidh na sonraí ar fáil, do na 10 mbliana roimh theacht i bhfeidhm an Rialacháin seo.