correcting factor - a coefficient which: - from 1 January 1993 is equal to the coefficient referred to in Article 6 (1) of Regulation (EEC) No 1677/85 and as applied on 31 December 1992, - thereafter, is altered by the Commission, whenever parities are realigned within the European Monetary System, in line with the highest revaluation of the central rate of the fixed currencies against the ecu.