For the purpose of determining the benefits calculated under K.S.A. 40-4,106 and 40-4,107, and amendments thereto, in the case of annuity contracts under which an election may be made to have annuity payments commence at optional maturity dates, the maturity date shall be deemed to be the latest date for which election shall be permitted by the annuity contract, but shall not be deemed to be later than the anniversary of such annuity contract next following the annuitant's 70th birthday or the 10th anniversary of such annuity contract, whichever is later.
K.S.A. 40-4,108