| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 13 |
6.9%
|
| 2 | Monthly | 74 |
39.2%
|
| 3 | Less than once a month | 83 |
43.9%
|
| 4 | Never | 13 |
6.9%
|
| 5 | Don't know | 4 |
2.1%
|
| 6 | Refused | 2 |
1.1%
|
| Sysmiss | 811 |