| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 9 |
4.8%
|
| 2 | Less than once a year | 9 |
4.8%
|
| 3 | Once a year to a few times a year | 87 |
46.8%
|
| 4 | Less than once a month | 32 |
17.2%
|
| 5 | At least once a month | 43 |
23.1%
|
| 6 | At least once a week | 6 |
3.2%
|
| Sysmiss | 10 |