| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 48 |
9.7%
|
| 2 | Monthly | 309 |
62.7%
|
| 3 | Less than once a month | 128 |
26%
|
| 4 | Don't know | 3 |
0.6%
|
| 5 | Refused | 5 |
1%
|
| Sysmiss | 507 |