A vested member is eligible for service retirement as indicated below, based upon his service retirement ratio. A member’s service retirement ratio shall, at retirement, be equal to the ratio of (1) to (2) as follows:
(1) The number of years of credited service for which the member was classified as a police officer or firefighter:
(2) The member’s total number of years of credited service.
0.000 to 0.100
65
0.101 to 0.300
64
0.301 to 0.500
63
0.501 to 0.700
62
0.701 to 0.900
61
0.901 to 1.000
60
A person who was an active member on June 30, 1985 shall be deemed to have a service retirement ratio of 1.000 either if the member was a police officer or firefighter on that date and continuously thereafter to retirement or if at the time of retirement the majority of the member’s credited service has been that of a police officer or firefighter.