a. Fill in the amounts for the Norfolk Southern statement of changes in retained earnings. Note: Use negative signs with your answers, when appropriate. Norfolk Southern Inc. Consolidated Statements of Changes in Retained Income Beginning Balance at Dec. 31, 2015 Net income Dividends on Common Stock $10,191 0 (695) Share repurchases (731) Other (8) Ending Balance at Dec. 31, 2016 10,425 Net income 5,404 Dividends on Common Stock 0 Share repurchases (945) Other (5) Ending Balance at Dec. 31, 2017 14,176 Net income 2,666 (844) 0 81 $13,440 Dividends on Common Stock Share repurchases Other Ending Balance at Dec. 31, 2018 b. Is it true (or false) that Norfolk Southern purchased its own shares back during each year from 2016 to 2018?