9. The annual value of any pension, widow’s or widower’s pension any other benefit granted under this act after 1 July 1977 is increased, where such is the case, from the effective date of such pension, by computing the pensions, widow’s or widower’s pensions or any other benefit on an average salary of $7,000 in the cases where the average salary used to establish the said pension is less than that amount.
1973, c. 11, s. 8; 1973, c. 12, s. 148 (part); 1977, c. 22, s. 4.