| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 68 |
25.7%
|
| 2 | Monthly | 106 |
40%
|
| 3 | Less than once a month | 86 |
32.5%
|
| 4 | Don't know | 2 |
0.8%
|
| 5 | Refused | 3 |
1.1%
|
| Sysmiss | 735 |