Article 36 of Commission Regulation (EC) No 2848/98 of 22 December 1998 ... fixes the amounts to which producers are entitled when their quotas for the 1999 and 2000 harvests are bought under the quota buy-back scheme. For the purpose of simplifying the scheme the fixing of the amounts to which producers whose quotas for the 2001 and subsequent harvests are bought back will be entitled should be made permanent by expressing those amounts as a percentage of the production premium in force during the year in which the buy-back application is submitted, this without prejudice to future amendments.