| Value | Category | Cases | |
|---|---|---|---|
| 2015 | 133 |
8.1%
|
|
| 2016 | 654 |
40%
|
|
| 2017 | 580 |
35.5%
|
|
| 2018 | 265 |
16.2%
|
|
| 4444 | Marked on card | 0 |
0%
|
| 6666 | Mother reported | 0 |
0%
|
| 9999 | No response | 1 |
0.1%
|
| Sysmiss | 3021 |