| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 20 |
13.4%
|
| 2 | Monthly | 21 |
14.1%
|
| 3 | Less than once a month | 67 |
45%
|
| 4 | Never | 38 |
25.5%
|
| 5 | Don't know | 1 |
0.7%
|
| 6 | Refused | 2 |
1.3%
|
| Sysmiss | 851 |