| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 17 |
5.8%
|
| 2 | Monthly | 156 |
53.6%
|
| 3 | Less than once a month | 92 |
31.6%
|
| 4 | Never | 23 |
7.9%
|
| 5 | Don't know | 3 |
1%
|
| 6 | Refused | 0 |
0%
|
| Sysmiss | 709 |