Artide 30.1, by the ratio between the number of shares subscribed by the national central bank concerned and the number of shares already paid up by the other national central banks.
hAirteagal 30.1 a iolrú ar an gcóimheas idir lion na scaireanna ama suibscriobh ag an mbanc ceannais náisiúnta i dtrácht agus lion na scaireanna atá íoctha cheana ag na baine cheannais náisiúnta eile.