- 50% of the share of its respective Member State in the population of the Community in the penultimate year preceding the establishment of the ESCB; - 50% of the share of its respective Member State in the gross domestic product at market prices of the Community as recorded in the last five years preceding the penultimate year before the establishment of the ESCB; The percentages shall be rounded up to the nearest multiple 0.05 percentage points. 29.2 The statistical data to be used for the application of this Article shall be provided by the Commission in accordance with the rules adopted by the Council under the procedure provided for in Article 42. 29.3. The weighting assigned to the national central banks shall be adjusted every five years after the establishment of the ESCB by analogy with the provisions laid down in Article 29.1. The adjusted key shall apply with effect from the first day of the following year. 29.4. The Governing Council shall take all other measures necessary for the application of this Article. ARTICLE 30 Transfer of foreign reserve assets to the ECB 30.1. Without prejudice to Article 28, the ECB shall be provided by the national central banks with foreign reserve assets, other than Member States' currencies, ECUs, IMF reserve positions and SDRs, up to an amount equivalent to ECU 50 000 million. The Governing Council shall decide upon the proportion to be called up by the ECB following its establishment and the amounts called up at later dates. The ECB shall have the full right to hold and manage the foreign reserves that are transferred to it and to use them for the purposes set out in this Statute. 30.2. The contributions of each national central bank shall be fixed in proportion to its share in the subscribed capital of the ECB. 30.3. Each national central bank shall be credited by the ECB with a claim equivalent to its contribution. The Governing Council shall determine the denomination and remuneration of such claims. 30.4. Further calls of foreign reserve assets beyond the limit set in Article 30.1. may be effected by the ECB, in accordance with Article 30.2, within the limits and under the conditions set by the Council in accordance with the procedure laid down in Article 42. 30.5. The ECB may hold and manage IMF reserve positions and SDRs and provide for the pooling of such assets. 30.6. The Governing Council shall take all other measures necessary for the application of this Article. ARTICLE 31 Foreign reserve assets held by national central banks 31.1. The national central banks shall be allowed to perform transactions in fulfilment of their obligations towards international organizations in accordance with Article 23. 31.2. All other operations in foreign reserve assets remaining with the national central banks after the transfers referred to in Article 30, and Member States' transactions with their foreign exchange working balances shall, above a certain limit to be established within the