| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 72 |
19.1%
|
| 2 | Monthly | 166 |
44.1%
|
| 3 | Less than once a month | 78 |
20.7%
|
| 4 | Never | 52 |
13.8%
|
| 5 | Don't know | 6 |
1.6%
|
| 6 | Refused | 2 |
0.5%
|
| Sysmiss | 624 |