| Value | Category | Cases | |
|---|---|---|---|
| 0 | Not given | 576 |
95.2%
|
| 1 | 1 |
0.2%
|
|
| 3 | 1 |
0.2%
|
|
| 4 | 1 |
0.2%
|
|
| 6 | 1 |
0.2%
|
|
| 8 | 1 |
0.2%
|
|
| 10 | 1 |
0.2%
|
|
| 11 | 2 |
0.3%
|
|
| 12 | 1 |
0.2%
|
|
| 13 | 1 |
0.2%
|
|
| 14 | 2 |
0.3%
|
|
| 15 | 1 |
0.2%
|
|
| 20 | 2 |
0.3%
|
|
| 23 | 2 |
0.3%
|
|
| 24 | 1 |
0.2%
|
|
| 26 | 1 |
0.2%
|
|
| 28 | 3 |
0.5%
|
|
| 29 | 2 |
0.3%
|
|
| 30 | 4 |
0.7%
|
|
| 44 | Marked on card - no date given | 0 |
0%
|
| 66 | Reported by mother | 1 |
0.2%
|
| 99 | Missing | 0 |
0%
|
| Sysmiss | 1727 |