| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes, always | 5607 |
40.4%
|
| 2 | Yes, usually | 4121 |
29.7%
|
| 3 | Yes, sometimes | 3285 |
23.7%
|
| 4 | No | 869 |
6.3%
|
| Sysmiss | 28130 |