| Value | Category | Cases | |
|---|---|---|---|
| -97 | NA | 0 |
0%
|
| -95 | Refuse | 0 |
0%
|
| 1 | Never | 278 |
14%
|
| 2 | From time to time | 961 |
48.4%
|
| 3 | Often | 708 |
35.6%
|
| a | 39 |
2%
|
|
| r | 1 |
0.1%
|
|
| Sysmiss | 748 |