2004/929/EC: Commission Decision of 22 December 2004 adjusting the weightings applicable from 1 February, 1 March, 1 April, 1 May and 1 June 2004 to the remuneration of officials, contract staff and temporary staff of the European Communities serving in third countries and of certain officials remaining in post in the 10 new Member States for a maximum period of 15 months after accession