1.For the purposes of this Regulation, the data to be transmitted by the Member States in accordance with Article 9 shall relate to:
internal tourism, in terms of the capacity and occupancy of tourist accommodation establishments, for the variables, periodicity and breakdowns laid down in Sections 1, 2 and 3 of Annex I;
internal tourism, in terms of tourism nights spent in non-rented accommodation, for the variables, periodicity and breakdowns laid down in Section 4 of Annex I;
national tourism, in terms of the tourism demand, which concerns the participation in tourism and the characteristics of tourism trips and visitors, for the variables, periodicity and breakdowns laid down in Sections 1 and 2 of Annex II;
national tourism, in terms of the tourism demand, which concerns the characteristics of same-day visits, for the variables, periodicity and breakdowns laid down in Section 3 of Annex II.
2.The Commission shall be empowered to adopt, where necessary, delegated acts in accordance with Article 11 concerning adaptation of the Annexes, except for the optional nature of the required data and to the limitation of the scope as defined in the Annexes in order to take account of economic, social or technical developments. In exercising its power pursuant to this provision, the Commission shall ensure that any delegated acts adopted do not impose significant additional administrative burdens on the Member States and on the respondents.