Any person who shall have become separated from service as a judge of any of the courts included in this article and who has had an aggregate of at least four years of service as a judge of one or more of such courts and shall have attained the age of sixty-five years or who has had twenty years of consecutive service as a judge of one or more of said courts and shall have attained the age of fifty years, and who shall have otherwise qualified as provided in this article , shall be entitled to an annuity as provided in this article . [C50, 54, 58, 62, 66, 71, 73, 75, 77, 79, 81, §605A.6 ] 83 Acts, ch 186, §10202(2) CS83, §602.9106 2006 Acts, ch 1091, §13 ; 2020 Acts, ch 1063, §322 Referred to in §602.1612 , 602.9112 , 602.9203