| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 3 |
4.1%
|
| 2 | Less than once a year | 4 |
5.4%
|
| 3 | Once a year to a few times a year | 41 |
55.4%
|
| 4 | Less than once a month | 6 |
8.1%
|
| 5 | At least once a month | 15 |
20.3%
|
| 6 | At least once a week | 5 |
6.8%
|
| Sysmiss | 22 |