| Value | Category | Cases | |
|---|---|---|---|
| 0 | Never | 1503 |
68.5%
|
| 1 | occasionally | 400 |
18.2%
|
| 2 | weekly | 186 |
8.5%
|
| 3 | daily | 105 |
4.8%
|
| Sysmiss | 12882 |