| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 49 |
8.2%
|
| 2 | Monthly | 475 |
79.8%
|
| 3 | Less than once a month | 50 |
8.4%
|
| 4 | Never | 9 |
1.5%
|
| 5 | Don't know | 6 |
1%
|
| 6 | Refused | 6 |
1%
|
| Sysmiss | 405 |