| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 26 |
5.9%
|
| 2 | Monthly | 139 |
31.6%
|
| 3 | Less than once a month | 231 |
52.5%
|
| 4 | Never | 43 |
9.8%
|
| 5 | Don't know | 0 |
0%
|
| 6 | Refused | 1 |
0.2%
|
| Sysmiss | 561 |