(40 ILCS 5/14-103.25) (from Ch. 108 1/2, par. 14-103.25)
    Sec. 14-103.25. Actuarial equivalent. "Actuarial equivalent": An annuity or benefit of equal value to the contributions plus regular interest, annuity or other benefit, when computed upon the basis of the actuarial tables in use by the system.
(Source: P.A. 81-1536.)