| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 17 |
14%
|
| 2 | Monthly | 19 |
15.7%
|
| 3 | Less than once a month | 81 |
66.9%
|
| 4 | Don't know | 4 |
3.3%
|
| 5 | Refused | 0 |
0%
|
| Sysmiss | 879 |