| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 25 |
15.3%
|
| 2 | Monthly | 89 |
54.6%
|
| 3 | Less than once a month | 40 |
24.5%
|
| 4 | Don't know | 7 |
4.3%
|
| 5 | Refused | 2 |
1.2%
|
| Sysmiss | 837 |