| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 45 |
9.5%
|
| 2 | Less than once a year | 76 |
16%
|
| 3 | Once a year to a few times a year | 199 |
41.8%
|
| 4 | Less than once a month | 59 |
12.4%
|
| 5 | At least once a month | 77 |
16.2%
|
| 6 | At least once a week | 20 |
4.2%
|
| Sysmiss | 2 |