| Value | Category | Cases | Weighted | |
|---|---|---|---|---|
| 0 | not given | 21 | 23 |
7.1%
|
| 1998 | 8 | 8 |
2.4%
|
|
| 1999 | 96 | 87 |
27.5%
|
|
| 2000 | 109 | 97 |
30.7%
|
|
| 2001 | 58 | 57 |
18%
|
|
| 2002 | 14 | 11 |
3.5%
|
|
| 4444 | marked on card | 20 | 25 |
7.9%
|
| 6666 | mother reported | 12 | 8 |
2.5%
|
| 9996 | not consistent with the other card | 2 | 1 |
0.4%
|
| 9997 | inconsistent | 0 | 0 |
0%
|
| 9998 | dk | 0 | 0 |
0%
|
| 9999 | missing | 0 | 0 |
0%
|
| Sysmiss | 2953 | 2976 |