System Passenger Yield per Equivalent Seat Mile
STAGE LENGTH ADJUSTED
Cents per Equivalent Passenger Mile
		1995	1996	1997	1998	1999	2000	2001	2002	2003	2004	2005	2006	2007	2008	2009	2010	2011
American		14.97	15.06	15.33	15.44	14.68	15.67	14.71	12.73	12.78	12.63	12.99	13.79	13.98	14.66	12.99	14.09	14.96
Continental		12.00	13.09	13.35	13.35	13.11	14.36	13.52	12.89	12.78	12.68	13.25	13.95	14.61	15.75	13.37	14.96	16.84
Delta		12.72	12.11	12.13	12.13	12.04	12.65	11.70	10.83	11.16	10.72	10.82	12.23	13.13	13.96	11.91	13.08	14.31
Northwest		12.44	12.46	12.05	11.18	11.40	11.88	11.05	10.49	10.57	10.84	11.08	11.81	12.19	12.92	10.94	-	-
United		13.01	13.53	13.74	13.50	13.50	14.47	12.84	11.85	11.37	11.57	12.38	13.25	14.16	15.00	12.70	15.15	16.69
US Airways		13.48	14.13	13.92	13.74	13.40	13.31	11.95	10.98	11.35	10.82	10.75	18.60	16.34	12.18	10.52	11.69	12.66
America West		9.80	9.74	10.15	10.77	11.00	11.02	9.80	9.58	9.91	9.46	10.18	-	-	-	-	-	-
--sub Network		13.14	13.30	13.36	13.23	13.02	13.74	12.66	11.64	11.67	11.56	11.92	12.92	13.44	14.20	12.19	13.75	15.01
Southwest		8.03	8.27	8.85	8.95	8.71	9.27	8.71	8.59	8.71	8.52	8.90	9.54	9.61	10.49	9.66	10.66	11.30
jetBlue		-	-	-	-	-	9.62	9.62	9.84	9.43	8.82	9.12	9.96	10.41	12.02	11.22	11.75	12.81
AirTran		-	-	9.90	10.11	10.17	11.00	10.65	9.56	9.55	9.18	9.67	10.15	10.13	10.31	9.09	9.72	10.57
Frontier		11.27	11.26	11.21	13.11	13.68	15.76	15.03	13.60	11.12	10.20	10.41	10.39	10.35	10.94	9.56	10.78	12.75
Virgin America		-	-	-	-	-	-	-	-	-	-	-	-	-	10.65	9.92	12.21	13.77
-- sub LCC		8.07	8.34	9.04	9.29	9.10	9.72	9.20	8.94	8.99	8.73	9.13	9.78	9.94	10.91	9.92	10.85	11.66
Alaska		10.40	10.31	10.96	11.05	11.39	12.08	11.67	11.41	11.43	11.16	11.52	12.25	12.37	12.76	12.06	12.38	13.01
Hawaiian		5.10	5.35	5.26	5.44	8.89	5.64	5.64	7.46	8.37	8.70	8.72	8.78	8.68	10.43	9.03	9.72	11.29
Allegiant		-	-	-	-	-	-	-	-	-	5.08	7.04	7.67	7.72	7.68	6.97	7.51	8.34
-- sub Other		9.00	9.01	9.38	9.56	10.72	9.96	9.74	10.43	10.46	10.46	10.72	11.14	11.03	11.75	10.76	11.16	12.04
Base Length of Haul		839	869	887	910	931	935	955	966	1,005	1,039	1,061	1,087	1,093	1,115	1,126	1,154	1,170
Note:   Stage Length Adjustment formula:  ((observed length of haul/base length of haul [15 carrier average])^.5) times respective carrier unit cost.
Data Source:  US DOT Form 41 via BTS, Schedules P12 & T2.