72. Subject to section 73, contributions are refunded with interest, compounded annually, at the rates determined, for each period, under the Act respecting the Government and Public Employees Retirement Plan (chapter R-10). For the purposes of computing the interest, the contributions are deemed to be received at the mid-point of the year of the payment and the interest is computed up to the first day of the month in which the refund is made.
However, in respect of contributions relating to the service of the employee while he was a member of a pension plan referred to in section 22, the interest is computed from the date on which he begins to pay contributions under this plan and, in respect of contributions paid by the employee into a pension plan out of which service was transferred to this plan pursuant to the second paragraph of section 24 and section 133, the interest is computed from the date of the application in the case of section 24 and from the date of the transfer of the funds in the case of section 133.