| Value | Category | Cases | Weighted | |
|---|---|---|---|---|
| 0 | not given | 5 | 5 |
1.5%
|
| 1998 | 34 | 33 |
10.3%
|
|
| 1999 | 113 | 103 |
32.4%
|
|
| 2000 | 105 | 100 |
31.6%
|
|
| 2001 | 50 | 48 |
15%
|
|
| 2002 | 8 | 7 |
2.2%
|
|
| 2003 | 3 | 3 |
0.8%
|
|
| 4444 | marked on card | 18 | 16 |
5%
|
| 6666 | mother reported | 4 | 4 |
1.2%
|
| 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 | 2953 | 2976 |