| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 56 |
14.9%
|
| 2 | Monthly | 231 |
61.6%
|
| 3 | Less than once a month | 36 |
9.6%
|
| 4 | Never | 47 |
12.5%
|
| 5 | Don't know | 5 |
1.3%
|
| 6 | Refused | 0 |
0%
|
| Sysmiss | 631 |