| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 13 |
14.4%
|
| 2 | Monthly | 24 |
26.7%
|
| 3 | Less than once a month | 43 |
47.8%
|
| 4 | Don't know | 10 |
11.1%
|
| 5 | Refused | 0 |
0%
|
| Sysmiss | 924 |