| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 27 |
3.4%
|
| 2 | Monthly | 291 |
36.8%
|
| 3 | Less than once a month | 258 |
32.7%
|
| 4 | Never | 198 |
25.1%
|
| 5 | Don't know | 9 |
1.1%
|
| 6 | Refused | 7 |
0.9%
|
| Sysmiss | 210 |