| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 2527 |
75.6%
|
| 2 | Sometimes | 645 |
19.3%
|
| 3 | Often | 81 |
2.4%
|
| 4 | Very often | 88 |
2.6%
|
| Sysmiss | 2925 |