| Value | Category | Cases | |
|---|---|---|---|
| -9 | don't know | 5 |
0.5%
|
| -8 | does not apply | 0 |
0%
|
| -7 | refused to answer | 0 |
0%
|
| 1 | always | 20 |
2.1%
|
| 2 | often | 105 |
10.8%
|
| 3 | sometimes | 259 |
26.6%
|
| 4 | never | 586 |
60.1%
|
| Sysmiss | 3146 |