| Value | Category | Cases | |
|---|---|---|---|
| 0 | no | 340 |
5.9%
|
| 1 | vaccination date on card | 3999 |
68.9%
|
| 2 | reported by mother | 1377 |
23.7%
|
| 3 | vaccination marked on card | 84 |
1.4%
|
| 8 | don't know | 3 |
0.1%
|
| Sysmiss | 32643 |