| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 5 |
7.7%
|
| 2 | Less than once a year | 7 |
10.8%
|
| 3 | Once a year to a few times a year | 21 |
32.3%
|
| 4 | Less than once a month | 5 |
7.7%
|
| 5 | At least once a month | 12 |
18.5%
|
| 6 | At least once a week | 2 |
3.1%
|
| Sysmiss | 13 |
20%
|