| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 18 |
4.4%
|
| 2 | Monthly | 183 |
44.5%
|
| 3 | Less than once a month | 209 |
50.9%
|
| 4 | Don't know | 0 |
0%
|
| 5 | Refused | 1 |
0.2%
|
| Sysmiss | 589 |