| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 270 |
44.6%
|
| 2 | Less than once a year | 100 |
16.5%
|
| 3 | Once a year to a few times a year | 153 |
25.2%
|
| 4 | Less than once a month | 19 |
3.1%
|
| 5 | At least once a month6 | 44 |
7.3%
|
| 6 | 10 |
1.7%
|
|
| Sysmiss | 10 |
1.7%
|