| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 49 |
21.3%
|
| 2 | Monthly | 117 |
50.9%
|
| 3 | Less than once a month | 56 |
24.3%
|
| 4 | Don't know | 3 |
1.3%
|
| 5 | Refused | 5 |
2.2%
|
| Sysmiss | 770 |