102.12. In calculating the average monthly pensionable earnings of a contributor, there shall be deducted from the total number of months in his contributory period the months for which a family allowance was paid to him and for which his pensionable earnings are less than his average monthly pensionable earnings, calculated before the application of this section and sections 103 and 104.
Such deduction shall not be effected in establishing the basic monthly amount of a retirement pension unless the number of months in the contributory period exceeds the basic number of contributory months, and shall not result in a number of months lower than such number.
Similarly, such deduction shall not be effected in establishing the basic monthly amount of a disability pension unless the number of months in the contributory period exceeds 60, and shall not result in a number lower than 60.
If such a deduction is so made, there shall also be deducted from the total pensionable earnings of the contributor the aggregate of his earnings corresponding to the drop-out months, choosing the months for which his earnings are the lowest.
This section has effect only if it is to the contributor’s or the beneficiary’s advantage, and it applies only in calculating the average monthly pensionable earnings of a contributor in respect of whom an application for benefits is made after 31 December 1976.