| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 13 |
3.2%
|
| 2 | Monthly | 41 |
10.2%
|
| 3 | A few times a year | 106 |
26.4%
|
| 4 | Rarely | 178 |
44.3%
|
| 5 | Never | 64 |
15.9%
|
| Sysmiss | 19 |