| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 26 |
7.1%
|
| 2 | Monthly | 166 |
45.5%
|
| 3 | Less than once a month | 168 |
46%
|
| 4 | Don't know | 4 |
1.1%
|
| 5 | Refused | 1 |
0.3%
|
| Sysmiss | 636 |