| Value | Category | Cases | |
|---|---|---|---|
| 0 | Not given | 58 |
85.3%
|
| 4 | 1 |
1.5%
|
|
| 6 | 1 |
1.5%
|
|
| 10 | 1 |
1.5%
|
|
| 11 | 1 |
1.5%
|
|
| 18 | 1 |
1.5%
|
|
| 21 | 1 |
1.5%
|
|
| 22 | 3 |
4.4%
|
|
| 44 | Marked on card - no date given | 1 |
1.5%
|
| 66 | Reported by mother | 0 |
0%
|
| 98 | Dk | 0 |
0%
|
| 99 | Missing | 0 |
0%
|
| Sysmiss | 124 |