| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 173 |
28.7%
|
| 2 | Monthly | 170 |
28.2%
|
| 3 | Less than once a month | 243 |
40.4%
|
| 4 | Never | 6 |
1%
|
| 5 | Don't know | 8 |
1.3%
|
| 6 | Refused | 2 |
0.3%
|
| Sysmiss | 398 |