| Value | Category | Cases | |
|---|---|---|---|
| -3 | Missing | 0 |
0%
|
| -2 | Do not know | 4 |
0.4%
|
| -1 | Refused | 1 |
0.1%
|
| 1 | always | 7 |
0.7%
|
| 2 | just once or twice | 273 |
27.5%
|
| 3 | many times | 21 |
2.1%
|
| 4 | never | 538 |
54.2%
|
| 5 | several times | 149 |
15%
|
| 99 | Other | 0 |
0%
|
| Sysmiss | 6 |