what was the corporate tax rate for 2019? please show where you got the numbers for calculations

over 7.5MB, performance may be affected. AT&T Inc Dollars in millions except per share amounts Consolidated Statements of income 2019 2018 2017 Operating Remmes Service Equipment Total operating revenues S 163,499 17.694 181.193 152,345 18,411 170.756 145.597 14,949 160 546 18,653 31,132 19,786 26,727 18,709 21.159 Operating Expenses Cost of revenues Equipment Broadcast, programming and operations Other cost of revenues (exclusive of depreciation and amortization shown separately below) Selling, general and administrative Asset abandonments and impairments Depreciation and amortization Total operating expenses Operating Income Other Income (Expense) Interest expense Equity in net income (loss) of affiliates Other income (expense) - net Total other income (expense) Income Before Income Taxes Income tax benetit) expense Net Income Less: Net Income Attributable to Noncontrolling Interest Net Income Attributable to AT&T Less: Preferred Stock Dividends Net Income Attributable to Common Stock 34,356 39,422 1,458 28,217 153,238 27,955 32.906 36.765 46 28.430 144,660 26.096 37.942 35,465 2,914 24,387 140,576 19.970 (8,422) 6 (1.071) (9.487) 18.468 3.493 14.975 (1,072) 13,903 S (3) 13.900 S 7957 (48) 6,282 (1223) 24.873 4.920 19,953 (583) 19,370 16.300) (128) 1.597 (4.831) 15.139 (14.708) 29.847 (397) 29.450 1970 S Basic Earnings Per Share Attributable to Common Stock Diluted Earnings Per Share Attributable to Commen Stock The accompanying notes are an integral part of the consolidated financial statements. 62 1.90 S 1.89S 2835 2.89 $ 4.76