Sec. 23e.
(1) Effective January 1, 1988, but before any of the increases provided by section 23c on or before January 1, 1988 are included, the monthly retirement allowance payable to a retirant or retirement allowance beneficiary and determined upon the date of retirement of the retirant whose retirement allowance effective date was before January 1, 1979 is supplemented as follows:
| Effective Date of Retirement | Percent of Increase |
| October 1, 1977 to December 31, 1978 | 10 |
| October 1, 1976 to September 30, 1977 | 11 |
| October 1, 1975 to September 30, 1976 | 12 |
| October 1, 1974 to September 30, 1975 | 13 |
| October 1, 1973 to September 30, 1974 | 14 |
| October 1, 1972 to September 30, 1973 | 15 |
| October 1, 1971 to September 30, 1972 | 16 |
| October 1, 1970 to September 30, 1971 | 17 |
| October 1, 1969 to September 30, 1970 | 18 |
| October 1, 1968 to September 30, 1969 | 19 |
| October 1, 1967 to September 30, 1968 | 20 |
| October 1, 1966 to September 30, 1967 | 21 |
| October 1, 1965 to September 30, 1966 | 22 |
| October 1, 1964 to September 30, 1965 | 23 |
| October 1, 1963 to September 30, 1964 | 24 |
| October 1, 1962 to September 30, 1963 | 25 |
| October 1, 1961 to September 30, 1962 | 26 |
| October 1, 1960 to September 30, 1961 | 27 |
| October 1, 1959 to September 30, 1960 | 28 |
| October 1, 1958 to September 30, 1959 | 29 |
| October 1, 1957 to September 30, 1958 | 30 |
History: Add. 1987, Act 58, Imd. Eff. June 23, 1987