(a) The commissioner shall adopt reasonable rules and statistical plans for the recording and reporting of premium, loss, and expense experience and other required data by each authorized insurer. The premium, loss, and expense experience must be reported separately for business assigned to the insurer.
(b) Each authorized insurer shall use the statistical plans adopted under this section to record and report premium, loss, and expense experience and other required data in accordance with the rules adopted by the commissioner.
(c) In approving rates under this subchapter, the commissioner shall consider the reports collected under the statistical plan regarding aggregated premiums earned and losses and expenses incurred in the writing of automobile insurance through the association.