| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 106 |
18.3%
|
| 2 | Monthly | 251 |
43.4%
|
| 3 | Less than once a month | 198 |
34.3%
|
| 4 | Don't know | 17 |
2.9%
|
| 5 | Refused | 6 |
1%
|
| Sysmiss | 422 |