| Value | Category | Cases | |
|---|---|---|---|
| 0 | no | 1930 |
33.3%
|
| 1 | vaccination date on card | 2686 |
46.3%
|
| 2 | reported by mother | 1095 |
18.9%
|
| 3 | vaccination marked on card | 83 |
1.4%
|
| 8 | don't know | 9 |
0.2%
|
| Sysmiss | 32643 |