| Value | Category | Cases | |
|---|---|---|---|
| 0 | None | 8 |
1.6%
|
| 2013 | 19 |
3.7%
|
|
| 2014 | 160 |
31.2%
|
|
| 2015 | 143 |
27.9%
|
|
| 2016 | 162 |
31.6%
|
|
| 4444 | Marked on card | 3 |
0.6%
|
| 6666 | Mother reported | 18 |
3.5%
|
| 9998 | DK | 0 |
0%
|
| 9999 | Missing | 0 |
0%
|
| Sysmiss | 610 |