| Value | Category | Cases | |
|---|---|---|---|
| 0 | Not given | 249 |
86.8%
|
| 1 | 1 |
0.3%
|
|
| 2 | 2 |
0.7%
|
|
| 3 | 1 |
0.3%
|
|
| 5 | 1 |
0.3%
|
|
| 7 | 1 |
0.3%
|
|
| 9 | 3 |
1%
|
|
| 10 | 2 |
0.7%
|
|
| 11 | 1 |
0.3%
|
|
| 12 | 1 |
0.3%
|
|
| 14 | 1 |
0.3%
|
|
| 15 | 1 |
0.3%
|
|
| 16 | 2 |
0.7%
|
|
| 17 | 2 |
0.7%
|
|
| 18 | 1 |
0.3%
|
|
| 20 | 1 |
0.3%
|
|
| 23 | 1 |
0.3%
|
|
| 24 | 1 |
0.3%
|
|
| 26 | 1 |
0.3%
|
|
| 28 | 2 |
0.7%
|
|
| 30 | 1 |
0.3%
|
|
| 44 | Marked on card - no date given | 8 |
2.8%
|
| 66 | Reported by mother | 3 |
1%
|
| 99 | Missing | 0 |
0%
|
| Sysmiss | 683 |