| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 29 |
4.7%
|
| 2 | Monthly | 139 |
22.5%
|
| 3 | Less than once a month | 359 |
58.1%
|
| 4 | Never | 86 |
13.9%
|
| 5 | Don't know | 5 |
0.8%
|
| 6 | Refused | 0 |
0%
|
| Sysmiss | 382 |