(40 ILCS 5/8-156) (from Ch. 108 1/2, par. 8-156)
    Sec. 8-156. Computation of interest. For the computation of interest upon any sum contributed by an employee into any municipal pension fund or into this fund, it shall be assumed that the sum was contributed on the last day of the calendar month in which such contribution was made.
(Source: P.A. 81-1536.)