| Value | Category | Cases | Weighted | |
|---|---|---|---|---|
| 0 | not given | 89 | 87 |
9.3%
|
| 1998 | 13 | 16 |
1.7%
|
|
| 1999 | 62 | 56 |
6.1%
|
|
| 2000 | 110 | 109 |
11.7%
|
|
| 2001 | 179 | 183 |
19.7%
|
|
| 2002 | 249 | 265 |
28.5%
|
|
| 2003 | 133 | 136 |
14.7%
|
|
| 4444 | marked on card | 28 | 32 |
3.4%
|
| 6666 | mother reported | 39 | 42 |
4.5%
|
| 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 |