| Value | Category | Cases | |
|---|---|---|---|
| 2 | More than 1 year ago | 464 |
38%
|
| 3 | Less than 1 year ago | 717 |
58.8%
|
| 4 | I have never feld I had a risk of being infected | 36 |
3%
|
| 93 | Prefer not to answer | 3 |
0.2%
|
| Sysmiss | 482 |