every four years, an overall progress report on Member States' increase in the number of nearly zero-energy buildings in accordance with Article 9(5) of Directive 2010/31/EU;
gach ceithre bliana, tuarascáil fhoriomlán ar mhéadú na mBallstát ar líon na bhfoirgneamh atá beagnach neodrach ó thaobh fuinnimh de i gcomhréir le hAirteagal 9(5) de Threoir 2010/31/AE;