218.3.3. The portions of the basic monthly amount of a benefit that are related to the first additional unadjusted pensionable earnings and to the second additional unadjusted pensionable earnings for a year are equal to the portions payable in December of the preceding year multiplied by the ratio that the additional benefits adjustment index for that year bears to the additional benefits adjustment index for the preceding year.
2023, c. 302023, c. 30, s. 171.