(1) Upon any liquidation of a domestic mutual insurer, its assets remaining after discharge of its indebtedness, policy obligations, repayment of contributed or borrowed surplus, if any, and expenses of administration, shall be distributed to currently existing persons who had been members of the insurer for at least one year and who were its members at any time within thirty-six (36) months next preceding the date such liquidation was authorized or ordered, or date of last termination of the insurer’s certificate of authority whichever date is the earlier; except, that if the director has reason to believe that those in charge of the management of the insurer have caused or encouraged the reduction of the number of members of the insurer in anticipation of liquidation and for the purpose of reducing thereby the number of persons who may be entitled to share in distribution of the insurer’s assets, he may enlarge the thirty-six (36) month qualification period above provided for by such additional period as he may deem to be reasonable.
(2)  The insurer shall make a reasonable classification of its policies so held by such members, and a formula based upon such classification for determining the equitable distributive share of each such member. Such classification and formula shall be subject to the approval of the director.