Sec. 1. The rates to be used by a health maintenance organization, including the actuarial assumptions underlying those rates, must be filed with the commissioner for approval and:
(1) must be established in accordance with actuarial principles for various categories of enrollees and, in the case of a group contract, shall not be individually determined based on the status of an enrollee's health;
(2) must be developed by an actuary or other qualified person acceptable to the commissioner; and
(3) may not be excessive, inadequate, or unfairly discriminatory.