| Value | Category | Cases | |
|---|---|---|---|
| 0 | never | 1550 |
77.4%
|
| 1 | sometimes | 196 |
9.8%
|
| 2 | often | 122 |
6.1%
|
| 3 | always | 135 |
6.7%
|
| Sysmiss | 1 |