| Value | Category | Cases | Weighted | |
|---|---|---|---|---|
| 0 | not given | 14 | 12 |
3.9%
|
| 1998 | 26 | 25 |
8%
|
|
| 1999 | 100 | 89 |
27.9%
|
|
| 2000 | 107 | 98 |
30.9%
|
|
| 2001 | 58 | 58 |
18.3%
|
|
| 2002 | 9 | 8 |
2.4%
|
|
| 2003 | 2 | 1 |
0.3%
|
|
| 4444 | marked on card | 16 | 19 |
6.1%
|
| 6666 | mother reported | 6 | 4 |
1.2%
|
| 9996 | not consistent with the other card | 2 | 3 |
0.9%
|
| 9997 | inconsistent | 0 | 0 |
0%
|
| 9998 | dk | 0 | 0 |
0%
|
| 9999 | missing | 0 | 0 |
0%
|
| Sysmiss | 2953 | 2976 |