Section 13-329. Contributions of members and their use; dependent benefit reserve funds

a. The dependent benefit reserve fund shall be  the  fund  from  which  shall be paid all dependent benefits payable as provided in
  section 13-355 of this subchapter.
    b. The dependent benefit contingent reserve fund shall be the fund  in
  which  shall  be  accumulated the contributions of members to create the
  reserve necessary to pay all benefits provided in section 13-355 of this
  subchapter.
    c. Upon the basis of the mortality and other tables herein authorized,
  and  regular  interest,  the  actuary  shall  compute  the   amount   of
  contributions,  expressed  as  a  proportion of the compensation paid to
  each  such  member,  which,  if  paid  semi-monthly  during  the  entire
  prospective  city-service  of the member, would be sufficient to provide
  for the reserve required at the time of his or her death  to  cover  the
  dependent  benefits which might be payable pursuant to the provisions of
  section 13-355 of this subchapter. Such proportion of compensation shall
  be  computed  to  remain  constant  during  his   or   her   prospective
  city-service.  Upon  the  death of such a member, an amount equal to the
  reserve for such  dependent  benefits  shall  be  transferred  from  the
  dependent  benefit  contingent  reserve  fund  to  the dependent benefit
  reserve fund.