; (ii) health care provider and clinical service costs; (iii) costs for prescription drugs; and (iv) other medical costs; and (B) spending on prescription drugs by— (i) the health plan; and (ii) the enrollees. (8) The average monthly premium— (A) paid by employers on behalf of enrollees; and (B) paid by enrollees. (9) Any impact on premiums by rebates, fees, and any other remuneration paid by drug manufacturers to the plan or its administrators or service providers, with respect to prescription drugs prescribed to enrollees in the plan, including— (A) the amounts so paid for each therapeutic class of drugs