| Value | Category | Cases | |
|---|---|---|---|
| 0 | no | 932 |
14.7%
|
| 1 | vaccination date on card | 4458 |
70.1%
|
| 2 | reported by mother | 917 |
14.4%
|
| 3 | vaccination marked on card | 20 |
0.3%
|
| 8 | don't know | 33 |
0.5%
|
| Sysmiss | 34034 |