| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 12 |
6.2%
|
| 2 | Monthly | 123 |
63.7%
|
| 3 | Less than once a month | 45 |
23.3%
|
| 4 | Don't know | 9 |
4.7%
|
| 5 | Refused | 4 |
2.1%
|
| Sysmiss | 807 |