| Value | Category | Cases | |
|---|---|---|---|
| 0 | Not given | 3531 |
16.5%
|
| 2014 | 4 |
0%
|
|
| 2015 | 315 |
1.5%
|
|
| 2016 | 813 |
3.8%
|
|
| 2017 | 180 |
0.8%
|
|
| 4444 | Marked on card | 180 |
0.8%
|
| 6666 | Mother reported | 5 |
0%
|
| 9997 | Inconsistent | 3 |
0%
|
| 9998 | DK | 1 |
0%
|
| 9999 | Missing | 13 |
0.1%
|
| Sysmiss | 16314 |
76.4%
|