| Value | Category | Cases | |
|---|---|---|---|
| 0 | Not received | 0 |
0%
|
| 2008 | 52 |
12.9%
|
|
| 2009 | 71 |
17.6%
|
|
| 2010 | 87 |
21.6%
|
|
| 2011 | 68 |
16.9%
|
|
| 2012 | 58 |
14.4%
|
|
| 4444 | No date recorded | 2 |
0.5%
|
| 6666 | Mother's report | 65 |
16.1%
|
| 9999 | Missing | 0 |
0%
|
| Sysmiss | 30 |