| Value | Category | Cases | |
|---|---|---|---|
| 1 | No never | 2314 |
29.3%
|
| 2 | Not more than usual | 2733 |
34.6%
|
| 3 | More than usual | 2375 |
30%
|
| 4 | Much more than usual | 485 |
6.1%
|
| Sysmiss | 2 |