Compute profitability measures RNOA and ROE for 2018 and 2017 using the balance sheet information below:

$ millions Net operating profit after tax (NOPAT) $10,978 2018 2017 2016 $3,222 $2,556 Net income 10,073 3,033 2,371 Operating profit 12,421 4,106 4,186 Interest expense 1,417 848 484 Cash from operating activities 30,723 18,365 17,203 Current assets 75,101 60,197 45,781 Current liabilities 68,391 57,883 43,816 Cash and cash equivalents 31,750 20,522 19,334 Marketable securities 9,500 10,464 6,647 Total debt 23,495 24,743 7,694 Assets 162,648 131,310 83,402 Liabilities 119,099 103,601 64,117 Equity 43,549 27,709 19,285 Net operating assets (NOA) 25,794 21,466 998