(2) actuarial assumptions:those provided for in Schedule I to the Régime de retraite des membres de la Sûreté du Québec, which are in force on the date of receipt of the application for a statement of benefits, in respect of the mortality rate, the spouse’s age, the rate of interest, the rate of increase in the Pension Plan Index within the meaning of the Act respecting the Québec Pension Plan (chapter R-9) and the proportion of members having a spouse.