| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 72 |
23.2%
|
| 2 | Monthly | 139 |
44.8%
|
| 3 | Less than once a month | 79 |
25.5%
|
| 4 | Don't know | 13 |
4.2%
|
| 5 | Refused | 7 |
2.3%
|
| Sysmiss | 700 |