| Value | Category | Cases | |
|---|---|---|---|
| 0 | Not given | 327 |
11.9%
|
| 2010 | 7 |
0.3%
|
|
| 2011 | 634 |
23.1%
|
|
| 2012 | 776 |
28.2%
|
|
| 2013 | 859 |
31.3%
|
|
| 4444 | Marked on card | 8 |
0.3%
|
| 6666 | Mother reported | 133 |
4.8%
|
| 9998 | DK | 3 |
0.1%
|
| Sysmiss | 3390 |