| Value | Category | Cases | |
|---|---|---|---|
| 44 | Vaccination given but no date recorded | 23 |
0.5%
|
| 55 | invalid dates | 42 |
1%
|
| 66 | Vaccination given but date not legible | 11 |
0.3%
|
| 99 | Not Applicable | 4271 |
98.3%
|
| Sysmiss | 1047 |