| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 2058 |
74.6%
|
| 2 | Occasionally | 400 |
14.5%
|
| 3 | Often | 154 |
5.6%
|
| 4 | Quite often | 147 |
5.3%
|
| Sysmiss | 13 |