| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 41 |
8.2%
|
| 2 | Monthly | 321 |
63.8%
|
| 3 | Less than once a month | 105 |
20.9%
|
| 4 | Don't know | 28 |
5.6%
|
| 5 | Refused | 8 |
1.6%
|
| Sysmiss | 497 |