NOTES TO CONSOLIDATED FINANCIAL STATEMENTS - Continued Unum Group and Subsidiaries Note 17 - Quarterly Results of Operations (Unaudited) The following is a summary of our unaudited quarterly results of operations for 2019 and 2018: 2019 4 th 3 rd 2 nd 1 st (in millions of dollars, except share data) Premium Income $ 2,352.6  $ 2,331.2  $ 2,343.1  $ 2,338.7  Net Investment Income 616.3  599.4  624.9  594.7  Net Realized Investment Gain (Loss) 9.2  (26.2) (7.3) 1.1  Total Revenue 3,034.6  2,960.0  3,016.7  2,987.6  Income Before Income Tax 377.4  299.4  352.0  353.3  Net Income 296.2  242.0  281.2  280.9  Net Income Per Common Share Basic 1.44  1.16  1.33  1.31  Assuming Dilution 1.44  1.16  1.33  1.31  2018 4 th 3 rd 2 nd 1 st (in millions of dollars, except share data) Premium Income $ 2,263.3  $ 2,251.8  $ 2,221.0  $ 2,250.0  Net Investment Income 608.6  619.2  623.6  602.3  Net Realized Investment Gain (Loss) (41.4) 6.7  (2.6) (2.2) Total Revenue 2,880.8  2,927.8  2,890.3  2,899.6  Income (Loss) Before Income Tax 309.7  (377.8) 354.8  341.1  Net Income (Loss) 249.1  (284.7) 285.5  273.5  Net Income (Loss) Per Common Share Basic 1.15  (1.30) 1.29  1.23  Assuming Dilution 1.15  (1.30) 1.29  1.23  Items affecting the comparability of our financial results are as follows: See Notes 6 and 8 for further discussion of the above items. • Fourth quarter of 2019 cost related to the early retirement of debt of $2.1 million before tax and $1.7 million after tax. • Third quarter of 2019 cost related to the early retirement of debt of $25.2 million before tax and $19.9 million after tax. • Third quarter of 2018 reserve increase of $750.8 million before tax and $593.1 million after tax related to long-term care. 194