The following minimum benefits shall apply to any plan based only on actual service under the Arkansas Judicial Retirement System:
(1) The annual minimum disability benefit shall be equal to twenty-five and six-tenths percent (25.6%) of the annual salary of the judge or justice; and
(2) The annual minimum survivors' benefit shall be an amount equal to seventeen and one hundred fifty-two thousandths percent (17.152%) of the annual salary of the judge or justice.