| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 72 |
25.3%
|
| 2 | Monthly | 126 |
44.2%
|
| 3 | Less than once a month | 85 |
29.8%
|
| 4 | Don't know | 2 |
0.7%
|
| 5 | Refused | 0 |
0%
|
| Sysmiss | 723 |