Start with the Income Statement, note how much the net operating revenues changed between the most recent year and the prior year. To the nearest tenth of a percent, what was the percentage increase or (decrease)?

(Dollars in millions, except per share amounts) 2015 2014 2013 Revenues before the provision for doubtful accounts Provision for doubtful accounts $ 43,591 $ 40,087 $ 38,040 3,913 3,169 3,858 39,678 36,918 34,182 Revenues Salaries and benefits. Supplies Other operating expenses Electronic health record incentive income Equity in earnings of affiliates Depreciation and amortization Interest expense Losses (gains) on sales of facilities Losses on retirement of debt Legal claim costs 18,115 6,638 7,103 (47) (46) 1,904 1,665 5 135 249 16,641 6,262 6,755 (125) (43) 1,820 1,743 (29) 335 78 15,646 5,970 6,237 (216) (29) 1,753 1,848 10 17 Income before income taxes Provision for income taxes 35,721 33,437 31,236 3,957 3,481 2,946 1,261 1,108 950 2,696 2,373 1,996 567 498 440 $ 2,129 $ 1,875 $ 1,556 Net income Net income attributable to noncontrolling interests Net income attributable to HCA Holdings, Inc. Per share data: Basic earnings per share Diluted earnings per share Shares used in earnings per share calculations (in millions): Basic Diluted $ $ 5.14 $ 4.99 $ 4.30 $ 4.16 $ 3.50 3.37 414.193 426.721 435.668 450.352 445.066 461.913