| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 105 |
21.6%
|
| 2 | Monthly | 129 |
26.5%
|
| 3 | Less than once a month | 230 |
47.2%
|
| 4 | Never | 20 |
4.1%
|
| 5 | Don't know | 3 |
0.6%
|
| 6 | Refused | 0 |
0%
|
| Sysmiss | 514 |