| Value | Category | Cases | |
|---|---|---|---|
| 0 | no | 1844 |
36%
|
| 1 | vaccination date on card | 1615 |
31.5%
|
| 2 | reported by mother | 1609 |
31.4%
|
| 3 | vaccination marked on card | 23 |
0.4%
|
| 8 | don't know | 30 |
0.6%
|
| Sysmiss | 30489 |