| Value | Category | Cases | |
|---|---|---|---|
| 0 | Not received | 0 |
0%
|
| 2007 | 1 |
0.2%
|
|
| 2008 | 2 |
0.5%
|
|
| 2009 | 6 |
1.5%
|
|
| 2010 | 9 |
2.2%
|
|
| 2011 | 3 |
0.7%
|
|
| 2012 | 3 |
0.7%
|
|
| 4444 | No date recorded | 2 |
0.5%
|
| 6666 | Mother's report | 377 |
93.5%
|
| 9999 | Missing | 0 |
0%
|
| Sysmiss | 30 |