| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 59 |
18.1%
|
| 2 | Monthly | 105 |
32.2%
|
| 3 | Less than once a month | 130 |
39.9%
|
| 4 | Never | 20 |
6.1%
|
| 5 | Don't know | 7 |
2.1%
|
| 6 | Refused | 5 |
1.5%
|
| Sysmiss | 678 |