(40 ILCS 5/12-123) (from Ch. 108 1/2, par. 12-123)
    Sec. 12-123. Age. "Age": Age at the latest birthday. In the computation of any retirement annuity, the actuarial factor shall be prorated for the number of days between the employee's last birthday and his age on the effective date of the annuity.
(Source: P.A. 86-272.)