| Value | Category | Cases | Weighted | |
|---|---|---|---|---|
| 0 | not given | 24 | 22 |
48.9%
|
| 1999 | 1 | 0 |
0.5%
|
|
| 2000 | 20 | 15 |
32.4%
|
|
| 2001 | 6 | 4 |
8.2%
|
|
| 2002 | 2 | 1 |
2.7%
|
|
| 2003 | 1 | 1 |
2.3%
|
|
| 4444 | marked on card | 3 | 2 |
4.4%
|
| 6666 | mother reported | 0 | 0 |
0%
|
| 9996 | not consistent with other card | 0 | 0 |
0%
|
| 9997 | inconsistent | 1 | 0 |
0.5%
|
| 9998 | dk | 0 | 0 |
0%
|
| 9999 | missing | 0 | 0 |
0%
|
| Sysmiss | 3235 | 3247 |