| Value | Category | Cases | Weighted | |
|---|---|---|---|---|
| 0 | not given | 177 | 194 |
20.8%
|
| 1998 | 3 | 5 |
0.6%
|
|
| 1999 | 62 | 61 |
6.6%
|
|
| 2000 | 88 | 82 |
8.8%
|
|
| 2001 | 162 | 160 |
17.2%
|
|
| 2002 | 219 | 223 |
24%
|
|
| 2003 | 109 | 108 |
11.6%
|
|
| 4444 | marked on card | 33 | 40 |
4.3%
|
| 6666 | mother reported | 50 | 56 |
6%
|
| 9996 | not consistent with the other card | 1 | 1 |
0.1%
|
| 9997 | inconsistent | 0 | 0 |
0%
|
| 9998 | dk | 0 | 0 |
0%
|
| 9999 | missing | 0 | 0 |
0%
|
| Sysmiss | 2389 | 2363 |