| Value | Category | Cases | |
|---|---|---|---|
| 0 | Not given | 3 |
8.6%
|
| 1 | 1 |
2.9%
|
|
| 3 | 1 |
2.9%
|
|
| 5 | 1 |
2.9%
|
|
| 10 | 3 |
8.6%
|
|
| 12 | 1 |
2.9%
|
|
| 13 | 2 |
5.7%
|
|
| 15 | 2 |
5.7%
|
|
| 16 | 1 |
2.9%
|
|
| 17 | 2 |
5.7%
|
|
| 21 | 1 |
2.9%
|
|
| 23 | 1 |
2.9%
|
|
| 24 | 1 |
2.9%
|
|
| 25 | 1 |
2.9%
|
|
| 26 | 1 |
2.9%
|
|
| 27 | 2 |
5.7%
|
|
| 30 | 1 |
2.9%
|
|
| 44 | Marked on card - no date | 8 |
22.9%
|
| 66 | Reported by mother | 2 |
5.7%
|
| 97 | Missing | 0 |
0%
|
| Sysmiss | 1855 |