| Value | Category | Cases | |
|---|---|---|---|
| 0 | Not given | 9 |
25.7%
|
| 2 | 1 |
2.9%
|
|
| 9 | 1 |
2.9%
|
|
| 13 | 1 |
2.9%
|
|
| 14 | 2 |
5.7%
|
|
| 20 | 1 |
2.9%
|
|
| 22 | 1 |
2.9%
|
|
| 23 | 2 |
5.7%
|
|
| 25 | 1 |
2.9%
|
|
| 28 | 1 |
2.9%
|
|
| 29 | 1 |
2.9%
|
|
| 44 | Marked on card - no date | 12 |
34.3%
|
| 66 | Reported by mother | 2 |
5.7%
|
| 97 | Missing | 0 |
0%
|
| Sysmiss | 1855 |