| Value | Category | Cases | |
|---|---|---|---|
| -9 | don't know | 2 |
0.2%
|
| -8 | does not apply | 0 |
0%
|
| -7 | refused to answer | 0 |
0%
|
| 0 | always | 304 |
31.2%
|
| 1 | sometimes | 497 |
51%
|
| 2 | never | 172 |
17.6%
|
| Sysmiss | 3146 |