| Value | Category | Cases | |
|---|---|---|---|
| 0 | not given | 9 |
17%
|
| 1995 | 11 |
20.8%
|
|
| 1996 | 15 |
28.3%
|
|
| 1997 | 7 |
13.2%
|
|
| 1998 | 5 |
9.4%
|
|
| 4444 | marked on card | 5 |
9.4%
|
| 6666 | mother reported | 1 |
1.9%
|
| 9997 | inconsistent | 0 |
0%
|
| 9998 | dk | 0 |
0%
|
| 9999 | missing | 0 |
0%
|
| Sysmiss | 15932 |