11. For applying sections 60 and 61 of the Supplemental Pension Plans Act (chapter R-15.1) where a member has had several periods of active membership in the plan, the sum of the member’s member contributions and the value of any pension benefit to which he is entitled shall be determined at the last date as of which he became entitled to such pension benefit, taking into account his accrued benefits and the member contributions that he has paid with respect to all of such periods, with the exception of any periods for which he has already obtained a refund or transfer of his benefits.