| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 59 |
15.2%
|
| 2 | Monthly | 173 |
44.6%
|
| 3 | Less than once a month | 47 |
12.1%
|
| 4 | Never | 80 |
20.6%
|
| 5 | Don't know | 22 |
5.7%
|
| 6 | Refused | 7 |
1.8%
|
| Sysmiss | 626 |