| Value | Category | Cases | |
|---|---|---|---|
| -998 | Dont know | 30 |
22.9%
|
| -888 | Other specify | 2 |
1.5%
|
| 1 | Less than once a month | 20 |
15.3%
|
| 2 | Once a month | 73 |
55.7%
|
| 3 | Twice a month | 6 |
4.6%
|