| Value | Category | Cases | Weighted | |
|---|---|---|---|---|
| 0 | not given | 67 | 79 |
8.5%
|
| 1998 | 29 | 31 |
3.3%
|
|
| 1999 | 68 | 65 |
7%
|
|
| 2000 | 115 | 103 |
11.1%
|
|
| 2001 | 200 | 212 |
22.8%
|
|
| 2002 | 254 | 256 |
27.6%
|
|
| 2003 | 115 | 116 |
12.4%
|
|
| 4444 | marked on card | 23 | 28 |
3%
|
| 6666 | mother reported | 30 | 37 |
4%
|
| 9996 | not consistent with the other card | 3 | 3 |
0.3%
|
| 9997 | inconsistent | 0 | 0 |
0%
|
| 9998 | dk | 0 | 0 |
0%
|
| 9999 | missing | 0 | 0 |
0%
|
| Sysmiss | 2389 | 2363 |