| Value | Category | Cases | |
|---|---|---|---|
| 2015 | 35 |
2.5%
|
|
| 2016 | 585 |
42.1%
|
|
| 2017 | 496 |
35.7%
|
|
| 2018 | 272 |
19.6%
|
|
| 4444 | Marked on card | 0 |
0%
|
| 6666 | Mother reported | 0 |
0%
|
| 9999 | No response | 0 |
0%
|
| Sysmiss | 3266 |