| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 6 |
3.1%
|
| 2 | Monthly | 114 |
59.7%
|
| 3 | Less than once a month | 27 |
14.1%
|
| 4 | Never | 44 |
23%
|
| 5 | Don't know | 0 |
0%
|
| 6 | Refused | 0 |
0%
|
| Sysmiss | 819 |