| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 16 |
8.2%
|
| 2 | Less than once a year | 41 |
21.1%
|
| 3 | Once a year to a few times a year | 93 |
47.9%
|
| 4 | Less than once a month | 37 |
19.1%
|
| 5 | At least once a month | 5 |
2.6%
|
| 6 | At least once a week | 2 |
1%
|
| Sysmiss | 9 |