| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 38 |
16.8%
|
| 2 | Monthly | 96 |
42.5%
|
| 3 | Less than once a month | 56 |
24.8%
|
| 4 | Never | 31 |
13.7%
|
| 5 | Don't know | 4 |
1.8%
|
| 6 | Refused | 1 |
0.4%
|
| Sysmiss | 774 |