| | | December 31, 2017 | | | December 31, 2016 | | ||
| Authorized shares | | | 120,000,000,000 | | | | 120,000,000,000 | |
| Subscribed fully paid shares | | | 22,281,017,159 | | | | 22,281,017,159 | |
| Total outstanding shares | | | 22,281,017,159 | | | | 22,281,017,159 | |
| | | | | | | | | |
| The outstanding shares are as follows: | | | | | | | | |
| Common voting shares (1) | | | 15,173,180,765 | | | | 15,254,876,823 | |
| Preferred non-voting shares (1) | | | 7,107,836,394 | | | | 7,026,140,336 | |