| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 1767 |
89.4%
|
| 2 | Occasionally | 151 |
7.6%
|
| 3 | Often | 29 |
1.5%
|
| 4 | Quite often | 30 |
1.5%
|
| Sysmiss | 7 |