| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 5 |
2%
|
| 2 | Monthly | 161 |
63.4%
|
| 3 | Less than once a month | 78 |
30.7%
|
| 4 | Don't know | 9 |
3.5%
|
| 5 | Refused | 1 |
0.4%
|
| Sysmiss | 746 |