| Value | Category | Cases | Weighted | |
|---|---|---|---|---|
| 0 | not given | 158 | 162 |
17.4%
|
| 1998 | 3 | 5 |
0.6%
|
|
| 1999 | 62 | 61 |
6.6%
|
|
| 2000 | 88 | 85 |
9.1%
|
|
| 2001 | 172 | 174 |
18.7%
|
|
| 2002 | 230 | 237 |
25.5%
|
|
| 2003 | 118 | 127 |
13.7%
|
|
| 4444 | marked on card | 28 | 32 |
3.5%
|
| 6666 | mother reported | 43 | 44 |
4.7%
|
| 9996 | not consistent with the other card | 2 | 3 |
0.3%
|
| 9997 | inconsistent | 0 | 0 |
0%
|
| 9998 | dk | 0 | 0 |
0%
|
| 9999 | missing | 0 | 0 |
0%
|
| Sysmiss | 2389 | 2363 |