Sec. 20f.
(1) The monthly retirement allowance payable to a retirant or beneficiary on or after September 30, 1976, who was on the rolls for April 1, 1978, is supplemented as follows:
| Effective Date of Retirement | Percent Supplemented | |
| 10-1-76 | 10-1-77 | |
| July 1, 1975 to June 30, 1976 | 1 | 1 |
| July 1, 1974 to June 30, 1975 | 2 | 2 |
| July 1, 1973 to June 30, 1974 | 3 | 3 |
| July 1, 1972 to June 30, 1973 | 4 | 4 |
| July 1, 1971 to June 30, 1972 | 5 | 5 |
| July 1, 1970 to June 30, 1971 | 6 | 6 |
| July 1, 1969 to June 30, 1970 | 7 | 7 |
| July 1, 1968 to June 30, 1969 | 8 | 8 |
| Before July 1, 1968 | 8 | 8 |
History: Add. 1978, Act 148, Imd. Eff. May 18, 1978