| Value | Category | Cases | |
|---|---|---|---|
| -99 | Refused | 0 |
0%
|
| -97 | Not Applicable (was not working before the outbreak) | 1 |
0.1%
|
| 0 | No | 29 |
1.7%
|
| 1 | Yes | 1684 |
98.2%
|
| Sysmiss | 1393 |