| Value | Category | Cases | |
|---|---|---|---|
| 1 | Once a month | 31 |
37.8%
|
| 2 | Once in three months | 17 |
20.7%
|
| 3 | No set time | 31 |
37.8%
|
| 88 | Other (specify) | 3 |
3.7%
|