| Value | Category | Cases | Weighted | |
|---|---|---|---|---|
| 0 | not given | 4 | 3 |
1%
|
| 1998 | 27 | 27 |
8.5%
|
|
| 1999 | 105 | 93 |
29.4%
|
|
| 2000 | 111 | 99 |
31.2%
|
|
| 2001 | 59 | 61 |
19.1%
|
|
| 2002 | 11 | 10 |
3.3%
|
|
| 2003 | 2 | 1 |
0.3%
|
|
| 4444 | marked on card | 15 | 17 |
5.3%
|
| 6666 | mother reported | 5 | 4 |
1.4%
|
| 9996 | not consistent with the other card | 1 | 1 |
0.5%
|
| 9997 | inconsistent | 0 | 0 |
0%
|
| 9998 | dk | 0 | 0 |
0%
|
| 9999 | missing | 0 | 0 |
0%
|
| Sysmiss | 2953 | 2976 |