| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 14 |
8.9%
|
| 2 | Less than once a year | 18 |
11.4%
|
| 3 | Once a year to a few times a year | 58 |
36.7%
|
| 4 | Less than once a month | 23 |
14.6%
|
| 5 | At least once a month | 29 |
18.4%
|
| 6 | At least once a week | 16 |
10.1%
|
| -99 | 6 | ||
| Sysmiss | 19 |