25(1)If the surviving spouse or surviving common-law partner of a person who ceased to be a member before April 1, 2008, is entitled to receive a surviving spouse’s pension or surviving common-law partner’s pension, as the case may be, under subsection 13(1) in respect of the person’s annual pension, the surviving spouse or surviving common-law partner is entitled to a supplementary allowance in an amount equal to 125% of the portion of the surviving spouse’s pension or surviving common-law partner’s pension attributable to the annual pension of that person calculated in accordance with subsection 10(2).