| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 162 |
35.4%
|
| 2 | Monthly | 157 |
34.4%
|
| 3 | Less than once a month | 98 |
21.4%
|
| 4 | Never | 20 |
4.4%
|
| 5 | Don't know | 12 |
2.6%
|
| 6 | Refused | 8 |
1.8%
|
| Sysmiss | 543 |