The calculation of basic earnings per share was calculated based on the weighted average number of common and preferred shares outstanding, as shown in the calculations below:
|
| Years ended December 31 | ||
| 2017 | 2016 (1) | 2015 (1) | |
| Net earnings attributable to the Organization's common shareholders (R$ thousand) | 8,157,920 | 8,542,147 | 8,652,905 |
| Net earnings attributable to the Organization's preferred shareholders (R$ thousand) | 8,931,444 | 9,352,102 | 9,480,001 |
| Weighted average number of common shares outstanding (thousands) | 3,049,991 | 3,049,991 | 3,050,156 |
| Weighted average number of preferred shares outstanding (thousands) | 3,035,625 | 3,035,625 | 3,037,917 |
| Basic earnings per share attributable to common shareholders of the Organization (in Reais) | 2.67 | 2.80 | 2.84 |
| Basic earnings per share attributable to preferred shareholders of the Organization (in Reais) | 2.94 | 3.08 | 3.12 |
(1) All share amounts presented for prior periods have been adjusted to reflect the stock split approved at the Board of Directors' Meeting of March 10, 2017, in the proportion of one new share for every 10 shares held.
Diluted earnings per share are the same as basic earnings per share since there are no potentially dilutive instruments.