| Value | Category | Cases | |
|---|---|---|---|
| 1 | Directly related | 169 |
12.7%
|
| 2 | Indirectly related | 173 |
13%
|
| 3 | Not related at all | 629 |
47.3%
|
| 4 | Don't know | 46 |
3.5%
|
| 9 | Missing | 312 |
23.5%
|
| 98 | Not applicable | 0 |
0%
|
| Sysmiss | 8098 |