The rates for converting currencies into the unit of account used for certain purposes of the Treaty establishing the ECSC and the scales showing, in the currency of each of the Member States of the Community, the net amount per metric ton of the levy on each of the products listed in Article 2 of Commission Decision No 3329/74/ECSC of 20 December 1974 for the period from 1 July to 31 December 1975.