| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 113 |
24.9%
|
| 2 | Monthly | 229 |
50.6%
|
| 3 | Less than once a month | 109 |
24.1%
|
| 4 | Don't know | 1 |
0.2%
|
| 5 | Refused | 1 |
0.2%
|
| Sysmiss | 547 |