| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 51 |
24.6%
|
| 2 | Monthly | 59 |
28.5%
|
| 3 | Less than once a month | 82 |
39.6%
|
| 4 | Don't know | 12 |
5.8%
|
| 5 | Refused | 3 |
1.4%
|
| Sysmiss | 793 |