33. Where the evaluation class for a position of senior administrator is lowered, the salary of the senior administrator holding that position shall either be decreased, if needed, to reach the maximum for the corresponding salary class, or maintained, if it is already within the range of this salary class.When the salary of a senior administrator is thus decreased because the evaluation class of the position he holds has been lowered:
— the senior administrator shall receive as a lump sum the total difference between the salary he received prior to the new evaluation of his position and the new annual salary he is entitled to, for the first 3 years following the new evaluation;
— the senior administrator shall receive in the same manner two thirds of the difference between the salary he received prior to the new evaluation of his position and the new annual salary he is entitled to for the fourth year, during that fourth year;
— the senior administrator shall receive in the same manner one third of the difference between the salary he received prior to the new evaluation of his position and the new annual salary he is entitled to for the fifth year, during that fifth year.