Given the requirements set out in Article 17(1) point a) and 18(2) point a) of the ELTIF Regulation, as well as in Article 3 of the ELTIF Delegated Regulation, is the minimum holding period, referred to in Article 18(2) point a) of the ELTIF Regulation, assessed in relation to the launch date of the ELTIF for all investors, or is it applied at each new subscription and on the basis of the date of each capital contribution if there is more than one investment by an individual investor?