| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 12 |
14%
|
| 2 | Monthly | 43 |
50%
|
| 3 | Less than once a month | 29 |
33.7%
|
| 4 | Don't know | 2 |
2.3%
|
| 5 | Refused | 0 |
0%
|
| Sysmiss | 921 |