Kan. Stat. § 74-4986d
Any member, joint annuitant or beneficiary of a member of the Kansas public employees retirement system who is receiving a benefit from the Kansas public employees retirement system calculated in accordance with K.S.A. 74-4978g and K.S.A. 74-4986b, shall have the benefit increased permanently in accordance with the following schedule: Those members whose date of retirement occurred before January 1, 1962, will be increased fifty percent (50%); those members whose date of retirement occurred during the calendar years 1962 and 1963 will be increased thirty-two percent (32%); those members whose date of retirement occurred during the calendar years 1964 and 1965 will be increased twenty-eight percent (28%); those members whose date of retirement occurred during the calendar years 1966 and 1967 will be increased twenty-two percent (22%); those members whose date of retirement occurred during the calendar year 1968 will be increased fifteen percent (15%); those members whose date of retirement occurred during the calendar year 1969 will be increased nine percent (9%); those members whose date of retirement occurred during the calendar year 1970 will be increased two percent (2%); those members whose retirement date occurred on and after January 1, 1971, are not increased by this act; those members whose retirement date occurs on or after the effective date of this act are not increased by this act.
K.S.A. 74-4986d