| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 116 |
18.7%
|
| 2 | Monthly | 204 |
32.9%
|
| 3 | Less than once a month | 287 |
46.2%
|
| 4 | Don't know | 13 |
2.1%
|
| 5 | Refused | 1 |
0.2%
|
| Sysmiss | 379 |