| Value | Category | Cases | |
|---|---|---|---|
| 1 | MEMORY RECALL | 18008 |
54.6%
|
| 2 | BIRTH CERTIFICATE ISSUED BY NSIA | 1660 |
5%
|
| 3 | BIRTH CERTIFICATE BY HOSPITALS OR OTHER INSTITUTIONS | 1327 |
4%
|
| 4 | VACCINATION CARD | 11487 |
34.8%
|
| 5 | GUESS FROM CALENDAR OF EVENTS | 253 |
0.8%
|
| 6 | OTHER (NOT RELATED) | 226 |
0.7%
|
| 9 | NO RESPONSE | 33 |
0.1%
|
| Sysmiss | 404 |