| Value | Category | Cases | |
|---|---|---|---|
| 2 | More than 1 year ago | 84 |
68.9%
|
| 3 | Less than 1 year ago | 38 |
31.1%
|
| 4 | I have never feld I had a risk of being infected | 0 |
0%
|
| 93 | Prefer not to answer | 0 |
0%
|
| Sysmiss | 2901 |