| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 97 |
52.7%
|
| 2 | Monthly | 43 |
23.4%
|
| 3 | Less than once a month | 40 |
21.7%
|
| 4 | Don't know | 3 |
1.6%
|
| 5 | Refused | 1 |
0.5%
|
| Sysmiss | 816 |