| Value | Category | Cases | |
|---|---|---|---|
| 1 | Once a week | 146 |
41%
|
| 2 | Twice a month | 40 |
11.2%
|
| 3 | Once a month | 156 |
43.8%
|
| 4 | Less than once a month | 14 |
3.9%
|
| Sysmiss | 6028 |