Use the information provided below for Southwest Airlines to answer the requirements.

$ millions	2013	2014	2015
Net operating assets (NOA)	$ 7,337	$ 6,812	$ 7,818
Net nonoperating obligations (NNO)	(332)	(296)	127
Total stockholders' equity	7,669	7,108	7,691
Net nonoperating expenses (NNE)	119	118	106
Net operating profit after tax (NOPAT)	873	1,254	2,287
Net income	754	1,136	2,181
Revenue	18,810	19,716	20,931

Below are the adjustments that analysts would use to account for Southwest's operating leases as if they were capitalized. Adjustments are based on the present value of Southwest's operating leases for fiscal years 2013-2015.

Balance Sheet Adjustments ($ millions)	2013	2014	2015
Net operating assets (NOA)	+3,267	+4,244	+3,188
Net nonoperating obligations (NNO)	+3,267	+4,244	+3,188
Equity	0	0	0

Income Statement Adjustments ($ millions)	2013	2014	2015
Interest expense	+129	+167	+126
Net nonoperating expense, NNE	+81	+105	+79
Net operating profit after tax, NOPAT	+81	+105	+79
Net income	0	0	0

a. Compute the following ratios using the unadjusted and the adjusted numbers for each year. For simplicity only, use year-end balances for NOA, NNO, and equity.

• Round ROE, RNOA, and NOPM to one decimal place (ex: 0.2345 = 23.5%).

• Round NOAT and FLEV to two decimal places.
• Use negative signs with answers, when appropriate.

	2013		2014		2015
	Unadjusted	Adjusted	Unadjusted	Adjusted	Unadjusted	Adjusted
ROE	Answer	Answer	Answer	Answer	Answer	Answer
RNOA	Answer	Answer	Answer	Answer	Answer	Answer
NOPM	Answer	Answer	Answer	Answer	Answer	Answer
NOAT	Answer	Answer	Answer	Answer	Answer	Answer
FLEV	Answer	Answer	Answer	Answer	Answer	Answer