| Year | Birth | Death | Natural increase |
| 1985 | 31.8 | 2.9 | 28.9 |
| 1990 | 26.6 | 2.0 | 24.6 |
| 1995 | 23.0 | 2.0 | 21.0 |
| 2000 | 19.9 | 1.6 | 18.3 |
| 2005 | 17.2 | 1.5 | 15.7 |
| 2015 | 16.8 | 1.2 | 15.6 |
| 2019 | 15.3 | 1.3 | 14.0 |