| Value | Category | Cases | |
|---|---|---|---|
| 1 | Once a week | 1 |
20%
|
| 2 | Once a month | 1 |
20%
|
| 3 | Once in 3 months | 0 |
0%
|
| 4 | Once a year | 1 |
20%
|
| 5 | Occasionally | 2 |
40%
|
| Sysmiss | 5886 |