9.5. To the salary or wages obtained in accordance with section 9.4 must be added 12 times the amount obtained from a retirement pension under the Act respecting the Québec Pension Plan (chapter R-9) or the Canada Pension Plan (R.S.C., 1985, c. C-8) or from a pension under the Old Age Security Act (R.S.C., 1985, c. O-9), received by the employee at the time of the first reduction in his salary or wages incurred during the delay when he was the beneficiary of one of the aforementioned pensions and for which he applies for compensation.