C. When a filing is not accompanied by the information upon which the carrier supports the filing or the superintendent does not have sufficient information to determine whether the filing meets the requirements that rates not be excessive, inadequate, unfairly discriminatory or not in compliance with section 6913, the superintendent shall require the carrier to furnish the information upon which it supports the filing.

D. A carrier that adjusts its rate shall account for the savings offset payment or any recovery of that savings offset payment in its experience consistent with this section and section 6913.

E.__Any filing of rates, rating formulas and modifications that satisfies the criteria set forth in this paragraph is subject to the provisions of paragraph F:

(1)__The proposed rate for any group or subgroup does not include a unit cost change that exceeds the index of inflation multiplied by 1.5, excluding any approved rate differential based on age. For the purposes of this subparagraph, "index of inflation" means the rate of increase in medical costs for a section of the United States selected by the superintendent that includes this State for the most recent 12-month period immediately preceding the date of the filing for which data are available; and

(2)__The carrier demonstrates in accordance with generally accepted actuarial principles and practices consistently applied that, as of a date no more than 210 days prior to the filing, the ratio of benefits incurred to premiums earned averages no less than 78% for the previous 36-month period.

F.__Any rate hearing conducted with respect to filings that meet the criteria in paragraph E is subject to this paragraph.

(1)__A person requesting a hearing shall provide the superintendent with a written statement detailing the