| Value | Category | Cases | Weighted | |
|---|---|---|---|---|
| 0 | not given | 38 | 29 |
2.2%
|
| 1998 | 47 | 50 |
3.7%
|
|
| 1999 | 108 | 101 |
7.5%
|
|
| 2000 | 175 | 187 |
13.9%
|
|
| 2001 | 288 | 304 |
22.6%
|
|
| 2002 | 372 | 360 |
26.9%
|
|
| 2003 | 164 | 149 |
11.1%
|
|
| 4444 | marked on card | 74 | 68 |
5%
|
| 6666 | mother reported | 101 | 92 |
6.9%
|
| 9996 | not consistent with other card | 0 | 0 |
0%
|
| 9997 | inconsistent | 1 | 2 |
0.1%
|
| 9998 | dk | 0 | 0 |
0%
|
| 9999 | missing | 0 | 0 |
0%
|
| Sysmiss | 1925 | 1952 |