| Value | Category | Cases | Weighted | |
|---|---|---|---|---|
| 0 | not given | 4 | 4 |
9.2%
|
| 1998 | 4 | 2 |
3.7%
|
|
| 1999 | 25 | 18 |
40.3%
|
|
| 2000 | 5 | 4 |
8.7%
|
|
| 2001 | 4 | 3 |
5.8%
|
|
| 2002 | 1 | 1 |
1.3%
|
|
| 4444 | marked on card | 9 | 10 |
22.1%
|
| 6666 | mother reported | 6 | 4 |
9%
|
| 9996 | not consistent with the other card | 0 | 0 |
0%
|
| 9997 | inconsistent | 0 | 0 |
0%
|
| 9998 | dk | 0 | 0 |
0%
|
| 9999 | missing | 0 | 0 |
0%
|
| Sysmiss | 3235 | 3247 |