| Value | Category | Cases | |
|---|---|---|---|
| 0 | Not given | 6061 |
59.3%
|
| 1 | 16 |
0.2%
|
|
| 2 | 40 |
0.4%
|
|
| 3 | 28 |
0.3%
|
|
| 4 | 38 |
0.4%
|
|
| 5 | 56 |
0.5%
|
|
| 6 | 41 |
0.4%
|
|
| 7 | 45 |
0.4%
|
|
| 8 | 52 |
0.5%
|
|
| 9 | 45 |
0.4%
|
|
| 10 | 50 |
0.5%
|
|
| 11 | 49 |
0.5%
|
|
| 12 | 56 |
0.5%
|
|
| 13 | 37 |
0.4%
|
|
| 14 | 44 |
0.4%
|
|
| 15 | 53 |
0.5%
|
|
| 16 | 62 |
0.6%
|
|
| 17 | 43 |
0.4%
|
|
| 18 | 44 |
0.4%
|
|
| 19 | 50 |
0.5%
|
|
| 20 | 51 |
0.5%
|
|
| 21 | 57 |
0.6%
|
|
| 22 | 59 |
0.6%
|
|
| 23 | 56 |
0.5%
|
|
| 24 | 45 |
0.4%
|
|
| 25 | 52 |
0.5%
|
|
| 26 | 61 |
0.6%
|
|
| 27 | 49 |
0.5%
|
|
| 28 | 55 |
0.5%
|
|
| 29 | 43 |
0.4%
|
|
| 30 | 53 |
0.5%
|
|
| 31 | 17 |
0.2%
|
|
| 44 | Marked on card - no date given | 624 |
6.1%
|
| 66 | Reported by mother | 989 |
9.7%
|
| 99 | Missing | 1107 |
10.8%
|
| Sysmiss | 4016 |