| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 36 |
21.6%
|
| 2 | Monthly | 36 |
21.6%
|
| 3 | Less than once a month | 81 |
48.5%
|
| 4 | Don't know | 14 |
8.4%
|
| 5 | Refused | 0 |
0%
|
| Sysmiss | 833 |