| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 9 |
3.8%
|
| 2 | Monthly | 104 |
44.3%
|
| 3 | Less than once a month | 98 |
41.7%
|
| 4 | Don't know | 17 |
7.2%
|
| 5 | Refused | 7 |
3%
|
| Sysmiss | 765 |