| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 17 |
20.2%
|
| 2 | Monthly | 22 |
26.2%
|
| 3 | Less than once a month | 43 |
51.2%
|
| 4 | Don't know | 1 |
1.2%
|
| 5 | Refused | 1 |
1.2%
|
| Sysmiss | 916 |