| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 11 |
5.8%
|
| 2 | Monthly | 153 |
80.1%
|
| 3 | Less than once a month | 15 |
7.9%
|
| 4 | Never | 12 |
6.3%
|
| 5 | Don't know | 0 |
0%
|
| 6 | Refused | 0 |
0%
|
| Sysmiss | 819 |