; (ii) for each such performance period, establish performance benchmarks in accordance with subparagraph (B); (iii) for each such performance period and each quality measure described in paragraph (17)(E), establish a performance score for each provider or supplier of air ambulance services, that is determined by measuring the performance of such provider or supplier described in clause (i), with respect to each quality measure described in such clause, against the performance benchmark established under subparagraph (B) for such quality measure; (iv) for each such performance period and provider or supplier of air ambulance services, determine a composite performance quality score, in accordance with subparagraph (C); (v) for each such performance period, rank each provider or supplier of air ambulance services, based on the composite performance quality score of such provider or supplier for such period (as determined under subparagraph (C)), in order from highest to lowest