| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 168 |
28.4%
|
| 2 | Monthly | 340 |
57.4%
|
| 3 | Less than once a month | 39 |
6.6%
|
| 4 | Never | 36 |
6.1%
|
| 5 | Don't know | 4 |
0.7%
|
| 6 | Refused | 5 |
0.8%
|
| Sysmiss | 408 |