| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 105 |
19.4%
|
| 2 | Monthly | 264 |
48.9%
|
| 3 | Less than once a month | 113 |
20.9%
|
| 4 | Never | 17 |
3.1%
|
| 5 | Don't know | 7 |
1.3%
|
| 6 | Refused | 34 |
6.3%
|
| Sysmiss | 460 |