| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 32 |
7.6%
|
| 2 | Monthly | 286 |
67.9%
|
| 3 | Less than once a month | 77 |
18.3%
|
| 4 | Never | 21 |
5%
|
| 5 | Don't know | 5 |
1.2%
|
| 6 | Refused | 0 |
0%
|
| Sysmiss | 579 |