| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 13 |
13.7%
|
| 2 | Monthly | 35 |
36.8%
|
| 3 | Less than once a month | 30 |
31.6%
|
| 4 | Never | 16 |
16.8%
|
| 5 | Don't know | 1 |
1.1%
|
| 6 | Refused | 0 |
0%
|
| Sysmiss | 905 |