| Value | Category | Cases | |
|---|---|---|---|
| 0 | Never | 871 |
39.8%
|
| 1 | occasionally | 740 |
33.8%
|
| 2 | weekly | 353 |
16.1%
|
| 3 | daily | 227 |
10.4%
|
| Sysmiss | 12885 |