| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 59 |
16.1%
|
| 2 | Monthly | 192 |
52.5%
|
| 3 | Less than once a month | 78 |
21.3%
|
| 4 | Never | 28 |
7.7%
|
| 5 | Don't know | 6 |
1.6%
|
| 6 | Refused | 3 |
0.8%
|
| Sysmiss | 634 |