| Value | Category | Cases | Weighted | |
|---|---|---|---|---|
| 0 | not given | 18 | 16 |
5%
|
| 1998 | 2 | 2 |
0.5%
|
|
| 1999 | 83 | 78 |
24.4%
|
|
| 2000 | 114 | 97 |
30.6%
|
|
| 2001 | 69 | 72 |
22.7%
|
|
| 2002 | 15 | 10 |
3.2%
|
|
| 2003 | 3 | 5 |
1.6%
|
|
| 4444 | marked on card | 21 | 25 |
7.8%
|
| 6666 | mother reported | 14 | 11 |
3.5%
|
| 9996 | not consistent with the other card | 1 | 2 |
0.8%
|
| 9997 | inconsistent | 0 | 0 |
0%
|
| 9998 | dk | 0 | 0 |
0%
|
| 9999 | missing | 0 | 0 |
0%
|
| Sysmiss | 2953 | 2976 |